You're alone. You're horny. And he's right there - the handsome handyman, the gorgeous gardener, the sexy stud washing the windows - You shoot him a look that says it's OK to break from his duties - there's a more important service you need him to perform. After all, why take matters into your own hands when you've got a hunky hired hand? He may have his own tools, but since you're paying, you reason he should work your equipment instead. Especially since you've got a nice big tip waiting for him.