no I didn't actually have to stab any, but we pretended (practiced) on the goat. So I now know where on a cattle beast I would have to stab if the beastie goes down and cannot get up. But the stabbing is an absolute last resort, and then subcut antibiotics etc..... These huge needles allow a small hole to be created, without the need for follow up stitches............ however I am so hoping that I NEVER have to do this one !!!!!!!!