If you want to get technical, I suppose it’s really the falling I’m scared of, but I’ll say true. 
TND lives alone (in re: other humans).
True.
TND has owned a car built before 1970.
I have never owned a car in my life. But I have some powerful friends with great big cars that may well have been built before 1970.
TNP has read Ulysses. Cover to cover.
False, and probably never will.
The next Doper knows the original Greek mythological Ulysses’s son’s name, and will tell us.
False. I know it, but I won’t tell you, just to be contrary.*
TND has eaten seafood in the past 48 hours.
- Telemachus?
False. Purely by happenstance; I love seafood.
(Yes, it was Telemachus.)
The next Doper has a secret crush on a politician.
True. And it’s going to stay true, because it’s going to stay a secret. 
TND has not traveled by plane (yet) in 2007.
True. I haven’t been on a plane for about three years; haven’t needed to.
The next Doper has never spoken the word “fucktard.”
True. I can’t even stand to type it.
TND has posted at least ten times to this thread (a guess is good enough).
Probably true.
TND is, or has been, addicted to NetHack.
False. I don’t even know what it is.
The next Doper rarely wears hats.
True…rarely to never.
TND wore braces and/or a retainer.
True, a retainer. Hated it and was glad to have it finally removed. And my front bottom teeth are still kinda crooked.
The next Doper once considered a career in medicine.
True. Pharmacist, anesthesiologist, medical examiner. Wound up working on computers in a hospital.
TND has had sex with someone they knew less than 12 hours.
False! I’m so proud of myself. 
I like that question, so I’ll pass it along. TND has had sex with someone they knew less than 12 hours.
False. The quickest meeting-to-bedding record for me was about three weeks. Let the pointing and giggling commence.
Same question for the next Doper.
True! I’m so proud of myself. What? 
Y’all wait the whole 12 hours?
TND has had sex with someone he/she has known for years before falling into sin.
So, how you doin?
Years plural? No. Between one and two though, yes.
TND has had a partner who was currently married to someone besides TND.
Not to my knowledge. That isn’t me being evasive; I really don’t think so, but I guess I can’t rule it out completely.
How about more sex questions? TND has had sex with someone without ever knowing their name (first and last).
Me again. It’s hard to get down the last name in under 12 hours. So, True.
TND has been tied up for sex (Evil Captor can you take as good as you give ?