Stop in for a cup of coffee

Yeah, we thought about that. The card was labeled "To Mom and Dad" or something like that. Even though there's a language barrier the guy used to work as an aircraft mechanic at Sea-Tac airport, he's fairly intelligent, just don't know how honest. When I described the envelope I didn't get any kind of "I didn't see one" answer, that is kind of bugging me, just got "I'll check my tools" (he leaves them at the clients house when he's working a job, I've seen that.

Hire him to do another job, and make one or two of his tools "disappear"....

Then if he asks if you've seen them, say I'll check and see....