Handle it as much as you can and get it as tame as a kitten and then when you start working it and it's an unpredictable bitey skulking b*****d give it back to the lad who bred it ?
Going off their ages and genders I'd say the worst thing that will happen is your house getting trashed from them constantly playing and arsing around.
I've kept axolotls, clawed frogs, horned frogs and a leopard frog before but I always fancied an African or American bullfrog. Is it Pixicephalus adspersus the Latin name? Big green thing that eats everything. My missus is terrified of frogs though.