This seems to be a pretty common occurrence for a lot of divers, and a lot of things underwater just seem to want to grab and hold onto to you. So what have you found yourself caught on, how did you react, and how did you extricate yourself?
I'll start:
Kelp: lots of it, all the time. It catches my valve, my wrist-mounted instruments, even the edges of my suit pockets. Once I checked my SPG, and trapped myself to a kelp stalk when I clipped it back! Usually I notice I'm going slowly or not at all, look around to see where it is, and either untangle myself or snap the stalk. Getting a kelpy bearhug has never been a big issue, fortunately.
SMB/cave line: my first few attempts ascending with an SMB were pure comedy. If you can't spool up the line while ascending, it goes slack and collects all over you. Turning around to see where you're caught just makes it worse. By the time I hit the surface, I had maybe 15ft of line all around me. This required my buddy to take the spool and free me from my coccoon while I ignominiously tried to make myself useful by rolling up the smb.
I'll start:
Kelp: lots of it, all the time. It catches my valve, my wrist-mounted instruments, even the edges of my suit pockets. Once I checked my SPG, and trapped myself to a kelp stalk when I clipped it back! Usually I notice I'm going slowly or not at all, look around to see where it is, and either untangle myself or snap the stalk. Getting a kelpy bearhug has never been a big issue, fortunately.
SMB/cave line: my first few attempts ascending with an SMB were pure comedy. If you can't spool up the line while ascending, it goes slack and collects all over you. Turning around to see where you're caught just makes it worse. By the time I hit the surface, I had maybe 15ft of line all around me. This required my buddy to take the spool and free me from my coccoon while I ignominiously tried to make myself useful by rolling up the smb.