I don't know if anyone else has experienced this..have not looked through the boards to find out, but on three separate occasions (three separate games), I have witnessed children taking mushrooms into the science shed! The first time it happened, I thought my eyes were playing tricks. But, then it has happened again, and again. Of course, they don't count as food -- not making it to the food bin, and of course don't count as "collectibles." But this is REALLY strange!
Most recently, I had a bunch of kids that, after pausing the game, placed them all on a red mushroom. Four of them picked it up and it would have been good points for the food bin...but you guessed it...straight into the science shed, they went with them!