Jd,
The funniest thing I heard a child do was ram a small computer disk into a drive.
Part of surviving is laughing at myself, as you say.
This week, twice I had to get up at 2am in the morning, since mom(or her nurse) nudged the telephone, which clicked the redial of the last number dialed(which was me).
I laughed at myself after speaking to the nurse, since it's as close to a woman I get at that time of the morning, so it was like "pillow talk" for me.
What surprised me was I wasn't grumpy at that time in the morning....good luck with your guests Jd...