What is a euphemism for enforcer?

As in a bad guy, thug, hatchet man, etc. who "persuades" people to pay. I'm trying to think of something overly professional and comedic.

Any ideas?

Solution 1:

Something like Payment collection agent?

• Payment collection agent
• Debt recovery officer
• Credit liaison manager

Perm any three from nine (or more...)

Solution 2:

I worked for a bookie in college for 3 years. Two common terms that were used to describe my position was runner or collector. The less hostile clients called me a runner - I collected money and took bets from them. The hostile clients would call me a collector and some of the older guys called me the bagman.