Mine is. This is what he does when mailing things to his parents (who, fortunately, have a good sense of humor):
When writing me a check for the rent each month (no, we still haven't gotten our act together enough to organize our bills to pay from a joint checking account, shush), he also writes "*SEXUAL FAVORS*" in the memo line to embarrass me in front of the people at my bank.
Such a charmer, he is. Wherever did I find him?