People who are seriously afraid of making other people mad and are therefore so accommodating they tend to piss people off anyway.
Jill: Can I help you with that?
Bill: No, I got it, thanks
Jill: Are you comfortable?
Bill: I'm fine thanks
Jill: Can I get something for you?
Bill: I said I'm fine
Jill: Oh no! I made you upset! What can I do to fix this!?!
Bill: Damn, just chill and stop being so damn aggrophobic