Pennies

This may be a trifle (well, it is a trifle) but I have noticed some restaurants, usually the type that specialize in making their customers feel inferior, keep the pennies (and nickels and dimes and quarters) and round up to the nearest dollar.

They never seem to round down.

And that annoys me.

Asking for the change seems like begging, but taking the difference off the tip seems wrong also.

Granted this isn't as important as most issues but it does frustrate me!