Mosquito alarms are <b>very</b> painful for me, causing big migraines. And when I used to work at a housing association, the bus I got every day passed a shop that left theirs on 24/7. Even though they weren't a 24h/7d shop. and every time, someone would say "you alright?" And I just point at the shop and say the anti-teenager alarm hurts my ears, and they were <b>always</b> like 'you're making that up'.