Man Of Steel trailer confirmed.

[Treqqor]

is that some unwritten theater etiquette rule? if I think a play is a total lump of crap I have to clap anyway?

As Riker answered Data when asked the same question, "Because it's polite".

Kids need to watch more Star Trek to learn their manners.. .

[the goddamn batman]

You should always tip something. If the service was terrible, tip 5%. The waiter will know you weren't happy.

The only people who don't tip are assholes and they better hope they don't frequent an establishment with their no tipping punk ass.

[Fast]

Do you tip, or tip what you're meant to if the service was horrible?

I always tip. What I meant by not having to is that their isn't a law or anything its a societal norm that almost everyone follows. Not doing it stigmatizes you but there is no rule forcing you to tip.

[Jared]

A play would have to be pretty damn terrible to justify not clapping at all. Like, not only was just crap, the performers were not even trying.

[Vibranium]

You should always tip something. If the service was terrible, tip 5%. The waiter will know you weren't happy.

The only people who don't tip are assholes and they better hope they don't frequent an establishment with their no tipping punk ass.

I always tip, I have no problem with that...waitstaff make next to nothing so I know they rely on tips for a good portion of their weekly income