Yes. I just finished Rescue Diver certification and there's a whole section on what to do when confronted with a panicked diver. Generally speaking, when people

Yes. I just finished Rescue Diver certification and there's a whole section on what to do when confronted with a panicked diver. Generally speaking, when people panic, they won't listen to instructions, will do nonsensical things (like not inflate their BCD which would keep them afloat) and try to use anything and anyone as an island to keep themselves up. There's a bunch of techniques we're trained on but in general, you should approach them from behind and be prepared to kick off in order to save yourself if they come after you.