B: No thanks. We just need our check. Have you seen the waitress?

A: Where is our waitress anyway?

B: Yes, the service hasn't been the best. Is that our waitress over there?

A: I'll walk over and get the bill, since I don't think the waitress is coming 

over here any time soon.

B: Good idea. Just bring it back and we'll figure it out together.

A: So the bill is $36.00.

B: How much do you think we should leave for a tip?

A: My first inclination is to leave nothing for a tip.

B: I agree, but we don't really know the whole story. There may have been 

problems in the kitchen beyond her control.

A: Let's leave 10%, so that we at least leave something for the service.

B: I agree. We will leave $3.60 for the tip.