King shows the way... (repost)
Hmm.. Well it was a surface vein on my scrote for sure (sorry if that's a bit vivid! )As for the dude's leg it was the usual outer lateral position - mid thigh - so don't think it could have been an artery? Those redi-ject pins were so big though - like the fella on the right here - so it left a decent hole in his leg . After that we pulled the Primo from the pen into a normal green pin as the stuff was pretty thick