Pit got into something he shouldn't have this morning and so I gave him a dose hydrogen peroxide when I got to work to make him vomit it up. 20 minutes later, nadam so I gave him more. Nothing, so I gave him more. NOTHING. Over an hour later and what I'm assuming is bordering on a dangerous amount of peroxide, he is happy as a clam and not vomiting at all. What to do? Vet?