When i take a really large snake to my vet, i try to bring atleast 2 extra friends with me to help restrainment (there's always 2 vet techs as well that help) even for the seemingly docile animals, sample taking and probing and whatnot could even make the 'tamest' snake strike out of frustration. Vet visits are evil, but a nessecary evil. More people to restrain it means no drugs + less strength per individual, less chance in bruising. Also a lot less chance of someone getting wrapped, and the back person gets to hold the messy end over a tub/sink.

if i call my vet she always asks me if im coming back with 'that one'... (adult grumpy Java retic, that slammed everyone around the room while she just needed 2 stitches)