The only time I bitch about police:
When there is clear proof of them abusing their power.
And deputies... Just about every office I talk to is cool. It's always seems that deputies have a stick up their ass.

The only "criminal" contact setting I've had with police:
A friend of a friend is being stupid, and shot a car with a pellet gun. We three get caught, police are called.
An officer got there first, looks at the car, single mark on the rear passenger side door, and told us it's probably gonna be settled out of court.
Deputy arrives, takes a passing glance at the door comes right up to us, sticks his face in my face "That's is gonna be over Eight HUNDRED dollars in damages, that's a FELONY charge. Do you understand what that means? It is going to be with you for LIFE."
... Except that I didn't shoot the car. So it's an accessory charge, at the most.
Go on and on about this car, felony, going to jail, blah blah blah, scare tactics.
They look up our records, me and my friend are clean, the friend of friend has several misdemeanors already, so this last charge brings to the edge of felony, or to a felony.
They cuff him, stick him in the deputies car, and let us two go.
Come to find out that the whole way to the station the deputy was going on to the friend of friend about how us two signed paperwork saying he did everything, and how we were gonna get away scot-free.
His grand-parents go to the station and bail him or whatever.
His out-of-state parents are pretty pissed, and threaten to move him back there.
And this guy now hates me, and isn't too friendly to my friend.

TL;DR, I ain't too happy with deputies.