Will dog food make be sick?

Okay so my brother bought this weird cereal some what... 4 or 5 days ago and ever since then I've been eating it and well today I found out that i've been eating our dog's kibbles'n bites. I found out after I fed our dog early this morning. this is some ***'d up prank. what should I do in revenge for what he did? i still have the dog food stench in my mouth.