That's my hook too
I've told more than one employer, sure I bitch and whine, sure I moan and groan, sure I ignore your policies, sure I work when I want to and don't follow your standard sales procedures but you sure do get a lot more sales from me than others .STFU and be happy I chose to work for you.
I get an odd look and you can see their wheels turning and hear the cogs groaning as they think of a reply or wonder whether they should fire me and then just smile and say, yeah well piss off and I'll see you tomorrow.