I used to donate plasma in Clarksville, TN. At the time you could do it twice a week, $15 the first time and $25 the second. Takes less than an hour to get in and out after your first visit, so I figured what the heck.

Anyway, my fifth or sixth time I got the new person. She stuck the 14 gauge needle in and missed the vein so she started digging for it. After about five minutes or so she called someone else over who spent another five minutes digging before finally finding it. I think that was my last time going as I spent the next month with a multi-colored bruise from my bicep to my wrist. It was cool watching the blood go into the centrifuge and feeling the colder blood coming back in.