I’m an American living in Japan, so my situation and perspective is a bit different, possibly not what the OP is looking for.
I used to live in the countryside where seeing foreigners was so rare that I often felt like a zoo animal. Old ladies followed me around the store to see what I bought. Groups of kids would exclaim and sometimes follow me around to see if I did anything interesting.
Even now that I live in Tokyo, where seeing non-Japanese is much more common, I’ll get people who pay a bit too much attention to me. Nervous smiles and fear that I’ll speak English are still very common. I still sometimes get followed by police officers for a couple of blocks, probably laboring under the assumption that foreigners are potentially violent criminals. That was more common in the country. I was stopped and (very politely) questioned by police several times there.
There have been many, many instances of Japanese people ignoring me, assuming I can’t speak Japanese. One memorable incident was when I was with a Chinese-Canadian girl (H) who spoke next to no Japanese. I explained things to her in English after the shop owner said anything, I ordered for us, requested add-on items, and the old bat still never made eye contact with me, instead directing every single question or comment to H. Even H said, halfway through the meal, “What the hell? She must know by now that I don’t speak any Japanese. Why does she keep asking me shit?”
Multiple odd encounters with Japanese guys who are inordinately interested in the size of my genitals. I’ve been groped a couple of times — not in a gay bar — by drunk dudes who apparently thought it was okay to just go ahead and check directly if they wanted to know how big my dick was…without even asking (or buying me a drink) first. I joke about it now, but the only time I was in a less comfortable situation than those incidents was when I was the token straight boy at a gay-friendly party in college, and a leather-bear took a shine to me, repeatedly invading my personal space. Shit, at least he gave off body language that was an advance warning.
Worse were the couple of times I was with a Japanese woman and some guy harassed her about me. The first, and most ugly incident, was when I was with a woman who volunteered with a local international society. She was showing me around the matsuri (festival, often held in late summer). A guy at one of the booths asked her where I was from, and I answered — in Japanese — that I was from the US. He, still addressing her, asked something in gutter Japanese that I didn’t get at the time, but now know was, “I’ll bet he’s got a big cock.” Even at the time I understood the second part, “I’ll bet you know all about that.”
The other incident was when I was with my girlfriend, now wife, and a couple of guys ignored me to hit on her. I told them in Japanese to leave and one of them said, “Fuck you” in English. Thank you, Hollywood, for spreading such linguistic joy.
There have been at least a handful of times where Japanese guys were much more aggressive toward me than they would have been to another Japanese. Once, he started acting very apologetic right after I started speaking Japanese. Considering I wasn’t at all nice about it (he rammed right into me because he wasn’t paying any fucking attention) and I said basically, “Hey, be careful! What’s your problem?” it was pretty obvious that he thought he could be a dick as long as I didn’t understand what he said. As soon as he found out that I spoke good Japanese and he couldn’t pull anything, he went back to standard let’s-both-agree-to-apologize behavior.
Another guy almost started an actual fist fight with me when he (again with the not paying attention) walked into me. I was standing upstream of my toddler niece in the crowds at Shinjuku so she didn’t get trampled. The choice between body-checking him or stepping aside so he could trip over her was an easy one. He and his buddy were obviously getting ready to do something when my sister in law (Japanese) stepped around from the other side and the rest of my family caught up. I apologized, and pointed out her daughter. He still looked like he was going to swing but then took another look at my family behind me and backed down, probably realizing that there would be native-Japanese witnesses.
At Kamakura a few years ago the shop lady refused to let me look at some alloy-metal practice swords, saying that she didn’t let customers look unless they were going to buy. She’d just seconds earlier finished letting a Japanese guy examine several, and even take one completely out of its sheath and give it a test cut, and he left empty-handed.
I’ve had several instances where someone insisted that they didn’t speak English (in Japanese, usually after I’d already addressed them in Japanese) or apologized in advance for the fact that they didn’t serve Western food (this is a sushi shop, dude, I think I know what I’m getting into) but she is the one person I remember who just flat lied to my damn face. I politely said, “Thank you anyway” in Japanese and left with my girlfriend, but if there was anyone who ever deserved a “fuck you” more, I haven’t met them yet.
I have a few South American friends who were turned away by landlords when looking for apartments, but I’ve never had that happen to me personally.
Yeah, I think I’ll stop here before it gets any longer or more depressing.