To do something which is of negligible inconvenience.
To feel care or anxiety; to make or take trouble; to be troublesome.
To annoy, to disturb, to irritate.
A mild expression of annoyance.
Fuss, ado.
Trouble, inconvenience.
To be indebted to someone.
To constrain someone by force or by social, moral or legal means.
To do (someone) a service or favour (hence, originally, creating an obligation).