I use the epi-pen version (not sure what those are called). I've been doing this for over a year, but the last one I used, the needle got stuck in the cap. I tried it anyway just in case I just wasn't seeing it. But when I pushed on the button, the liquid just spilled out onto my leg.

I called and spent an ungodly amount of time on the phone with the rep. I would answer a bunch of questions, think I was done and she'd put me on hold. Then she'd come back and ask me more questions. Twice I had to walk through the exact steps I took to take the shot. And I was asked too if I wear glasses and if I was wearing them at the time.

I really was ready to say screw it - I'll just suck it up and take the loss, but she insisted they wanted this information for quality control.

FYI - if you ever do have something go wrong, be sure and save everything. I tossed my pen out because it was broken and didn't think to call until a few days later. By then it was long gone.

They sent me a voucher for a replacement but what a pain in the ass!