Well, we all have our takes on a few points here but on this one I think we'll all agree: don't sheet in when righting the boat! Water is, what, 8 pounds per gallon? There's a pile of weight to try to overcome, regardless of the strength of the wind. Secondly, assume the wind helped you to raise the sail. In that case, if it's sheeted in, what stops the sail from coming up and the boat now going right over the other way? Additionally, assuiming the boat stayed upright, a sheeted in sail has power in it, and the boat can take off without you on it!

Sheldon