I second what the Beav stated about the pond beaver and how wary they can be.
I have had a couple jobs that the beaver will hold up and not move after a mate was caught. I was using live cage traps with one job.
The one most likely witnessed the other being caught and carrying on all Nite attempting to escape.
I had 3 cages set fairly close together with one end of the traps in the water and the other end exposed out of the water so they could get air. I had them staked to a 6 ft rebar and wired up.
The bank dam and bottom where I set up dropped off sharply, so the traps were at a steep angle. The client didn't want a lethal means of capture on this job, and I had permission to relocate them to a local river. I could see the bank den hut from where I set up about 150 yards back in the hollow of the woods.
That other beaver never moved from that bank den or where it holed up. I set up a few snares as I figured it wouldn't get near those traps again. I set Hancock and Bailey traps; they never approached them. I set up trail cams at several points of the pond. I never talked and made as little noise as I could on each trip there.
Never saw the beaver again on camera. On the 10th check I caught that beaver in a snare. It was set on a subtle mud slide I made with a touch of sac oil, fresh castor and a few peeled saplings I placed near the slide. I saw some shore saplings they had been feeding on previously. I had to run a long extension cable to an earth anchor to get that snare attached to something solid.
When I approached that snare set area on that 10th check, I couldn't see my snare. I figured it may have got knocked down by a deer etc. So, I am looking for the support wire or cable couldn't find either. I stopped and looked up to the small saplings growing on the upper bank to where I had placed by earth anchor.
I still couldn't see any cable or animal. I did see what I thought was a slight disturbance in the grasses and weeds just below the sapling patch. I kept scanning that area.....
Then boom, out of nowhere that beaver came charging down that bank as fast as it could come towards me. It was on about 15 ft of cable extension and snare collectively. I knew that snare reached the bank, so I knew he had lots of cable left to get me.

It had been lying flat and still by an old, felled tree so I never saw it until it moved the first few feet. It was only about 10 ft or so away when it began its charge. It was one of those oh SHHH T moments. It was every man for himself reaction.
I can say, it nearly got me. I never saw one move that fast before. Don't think those buggers with those short legs can't move when they need to on dry land. I had hip boots on and rolled down halfway since I didn't know if I needed to get into the water or not.
Some kind of sprawling ivy, the kind that can trip you when walking thru it, was all over the area so, needless to say I stumbled a bit trying to get out of the danger zone. I think the old heart was racing a bit. The old man can still bust a move when necessary.

At least this time....