How to ascertain speaker damage?

My %%^#$@!!! housemate was tossing a football around the living room and knocked one of my bookshelf monitors off its stand. It fell 1 feet, hit the subwoofer, and then fell 1 more feet to the ground.

There is some very, very slight scuff marks on the cabinet (plastic--these are minipods). How do I ascertain if there is any damage that has affected the speaker sonically?

This really pisses me off, as I am still in the process of breaking them in. What shall I do? Make him replace it? Or give him a stern warning?

Thanks...
;-(