$250 for service in a restaurant.

I dog sit. In general would be around $100 I think. Per night would be the $40 I got for watching a dog for a night. I don't know if it counts but people have had to cancel on me lately because they no longer were travelling and one of my clients canceled but let me keep the $360 anyway.  

Tips usually depend on how much the bill is.

I never got tips as a cook. I worked with a waitress who got a $100 tip.

Ex roommate was dealing cards in a casino dealt a guy a royal flush on Caribbean stud poker. It paid over 250000 he got a tip of around 6k but I think the dealers all shared the tips so he never got it all.

I got a $100 tip for delivering pizza back in college.