Two. One to screw it in and one to take credit for it.
A. Bingo!
One. Men can be Feminists, too.
2. 1 to change the light bulb, the other to take pictures.
Four. One to change the bulb, three to stand around so he has someone to hi-five after.
5. 1 to screw in the light bulb, and 4 to remark on how grand the old one was.
Only one but 200 applied for the job.
They both have multiple triggers that will cause them to down vote those who don't think the exact same way as them.
Ask them what OP stands for.
A Honda quaalude. (Credit to my girlfriend)