When you get down to that one last (expletive or (s) of your choice) beaver that is avoiding everything and anything he can see that you put down, conibears, cages and even snares on top, though the Bailey is a large trap, it can be completely camouflaged in the right situations, weeds or muck. Educated, wised up beaver seem not to want to go under or through anything, no confinement. Because the beaver simply swims over the Bailey trap, there is nothing to tip him off, just business as usual swimming on the surface. Just had a spot where the water was shallow, a foot or a little more I guess, lily pads and weeds. Dropped it in and added a bit of this and that until it was completely invisible. You could see the trail in the weeds, a no brainer. Just line out the trap and center it in the path. This beaver and I had some history, so very glad to see him in the basket, 47 pound male, exactly the call.
When you set the Bailey you do need to make sure all is clear and the trap is set on a short throw. I once made an error in not checking the safety, which hung on the cage wire, something that will not happen again. All in all, I have a great deal of confidence in the capability of the Bailey to get me out of jams, several of them so far. Once in a while I create a problem, but often they are inherited, but nice to have a trick or two in the bag.