People can be ridiculously stupid!
Some people are so stupid that they bring down the combined IQ of humanity to a ridiculous low:
1) Watch out, woman!
3) That's not how you inflate tyres!
4) Real smart!
5) Well deserved!
6) Real smart!
7) Trains don't go to the dumb town where they live
8) So stupid!
9) Didn't quite think it out, did he?
11) Someone's bubble-bathing
13) Oh, don't you?
14) Perfectly stupid!
15) This is gonna end well!
16) Try again!