If you are short of or on something,
If you let people down,
If you don't get around to something,
If you get someone off your back,
If you tag along with someone,
If you drive your friends away,
you go along even if you're not needed or invited.
you don't find the time to do it.
you stop that person from annoying you.
you do things so they won't be your friends.
you don't have enough of it.
you disappoint them.
