He asked for trouble by provoking the angry mob.

I'll give you a discount for all your trouble.

The school has a strict policy against trouble-makers.

There's trouble at t'mill!

There was some trouble at the mill yesterday.

I submitted a trouble ticket to the IT department.

He decided to pour oil on troubled waters and mediate the conflict between the two parties.

He decided to cast oil on troubled waters and try to resolve the conflict peacefully.

He poured oil on troubled waters.

He is pouring oil on troubled waters by mediating between the two parties.