Pretty much what we do also, incuding the same joke.So a running joke at our table is that when a player misses a session that their character volunteers for all button pushing, lever pulling, and potion tasting activities. Honestly, we generally hand out the sheet to a different player to control in combat and the DM covers the RP for the absent player. How do you handle this at your table? Any interesting ideas out there?
Interesting idea. In a FLGS game where you never know who'll show up week-to-week, that could be a really good solution.One time I developed a whole campaign premise to solve just this: The world was afflicted by a "phasing curse" where people would randomly phase out of existence into a slightly off-set plane. It shared all the physical characteristics of the normal plane, but none of it's natural life. So a "shifted" character could follow along, but neither help nor harm anyone on the regular plane. That's not to say they were safe but I have a standing policy that I don't kill players who aren't present (except in severe circumstances).
This "permission" is locked in in our game - that if you're not there your character is at the mercy of whoever ends up playing it, barring any instructions you've given the DM. We don't have it do anything it wouldn't normally do - but if it's always the risk-taker when you play it it'll still be the risk-taker when you're not there.*UNLESS: You've given prior permission for someone else to run your character (not the DM, I won't do it). In that case, you're just as vulnerable as everyone else.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.