That’s adorable!
I LOVED “Watership Down”. 
I’ve heard that this is a very common reaction in children, especially those who have just learned of the death of a parent or sibling.
Our copies of the Anarchist Cookbook are library use only precisely to avoid theft though any one capable of passing university level science course should be able to create effective explosives, poisons, etc., if they really want to.
I’ve actually done that. It was one of those indestructible Nokia candy bar phones. Threw it the wall as hard as I could. Back popped off and battery fell out, put it back together and it was fine.
The Scientologists sent us two BIG boxes full of books about L. Ron Hubbard a few years back. As these were of no interest to our collection and probably even less interest to anyone we might have donated them to, most were tossed into the recycling bin. However, I turned several of them into a large “magazine Christmas tree” style centerpiece for an office party.
You’ve only had occasion to do this to guys? Hmm…
A local gynecologist recently gave us more copies of “Fit Pregnancy” magazine than we will probably ever be able to distribute. We put them out a few at a time, on the 10-cent rack. If we still have them in, say, 6 months, we’ll decide what to do with them.
Occasionally, there have been groups with female student workers among them. I’ve observed that female student workers are usually better at concealing their goofing off than males. I think a lot of that is probably because female student workers have simply learned how to hide their goofing off better. Guys like to slack off in groups and play group games which are harder to conceal and frequently produce a lot of noise.
Guys do it to be noticed. (Without particularly thinking that through). They goof off loudly for the same reason they get flashy cars and try to get good jobs. It’s the purpose of life.
I’ve repeatedly read the assertion that girls don’t dress up to impress guys – they dress up to impress girls. I think that this assertion is repeated because women have noticed that guys assume that everything a girl does, at the most fundamental level, is to impress guys. We think like that because, at the most fundamental level, everything we do is to impress women. (Unless it’s about sex. Sex is more important than impressing women.)
I don’t know why girls goof off quietly or loudly. I’m not a girl.
My Year 8 Music teacher did this a few times (to stuff on his desk) when he was shouting at the class. He left half way through the year after getting a job travelling Europe in a band and his replacement was a very non-sweepy person 
Although I didn’t see it there was a (sort of) food fight in the class right before mine. Looked like it was all chocolate powder so it was probably just one person throwing it around.