Two examples for me:
Taking a shower: Loud water gushing, those harsh seconds before the water gets warm (even though it was already warm coming out of the bathtub faucet) - then it’s too hot; by the time you get comfortable it’s time to get out and start shivering all over again. Definitely a stress situation; I’d never want to wake up by showering first thing in the morning.
Driving. No matter how scenic or deserted the road is, driving is either tiring or stressful; never relaxing. I don’t understand those car commericials where they make it out to be something fun, I don’t care how nice the car itself is.