Nobody else at the party noticed the kid leave either. Especially if *nobody* can give you a straight answer about how long the kid was missing. Again, this is a two-year-old, they're escape artists, and it was your husband's responsibility. But you seem to have had a fairly large group of adult family members and friends hanging out around the grill - was literally everybody completely tuning out the existence of the kids?

That's the least surprising part of all this. In my experience, the more adults there are, the more likely there is to be a little mishap. Even in a setting where every adult is in theory watching their own child, somehow more adults = fewer eyes.