DEAR ABBY: I am regularly invited out to eat by either of two friends, both of whom are very wealthy. I have noticed that neither one leaves a 15 percent tip. They usually leave 10 or 12 percent.
I feel uncomfortable when they don't leave a server what I consider to be the minimum appropriate tip. Would it be OK for me to add to the tip they are leaving? I don't want to offend them. Please advise. -- RED-FACED IN RICHMOND, CALIF.
DEAR RED-FACED: If you can find a way to do it discreetly, without embarrassing your host, I am sure your generosity would be appreciated by the server.