Maybe later
We just hate it when instead of a button that should just read ‘no’ it says ‘maybe later. Well, we do not want to accept what you are offering later at all, in fact, we never want to accept it. But by having the button read ‘maybe later you are forcing us to see your offer once again in the near future.
When will they learn that no means no, we guess that they are just trying to sell something and need to ask constantly? But we feel that once you ask us if we are interested in a service or any offer over the computer and we refuse it, that should be the end of it.