So my room mate just started his first cycle of steroids. He is doing the kind you inject think he said it is called Deca 3 or something. Anyways, i know he has done his research and has gotten advice and such but there is anything i should look out for since i will be watching from the outside. He is 6'5 190 right now so holding him back in case of some mood swing doesnt bother me. I really dont know much about this though so i was wondering if there was anything i should look out for.