"What part of 'Shall not be infringed' do you not understand, you Jack-Booted Thug?"
Also, make sure to mention that the applicant pays his salary, and is currently on his meds.
Works every time.
Seriously, when I did it, I just said that I'd known the applicant for [x] years, in [x] context, and signed it with some of the 'street cred' in my .sig