I remember once when I was giving a penicillin injection to a rabbit (when I first started injecting , just realised that makes me sound like a junkie:lol::loland I hadn't but the needle on enough and as I went to inject the syringe came out and covered my face and the wall with penicillin:lol::lol::lol::lol:
Been there and done that, Depocillin is a for blocking the syringe, I always put a fresh needle on pre-drawn syringes now. I've also had a faceful of Nobivac before when the needle snapped off during a Myxi vac.