True,well put. They are quite handy in that situation,l will agree. Have used the wire lanyard,for about 2 weeks,before it broke. As a result of all the entanglements & degree of twisting that your spanner,goes through in an average day. Also the company l was with at the time,just wanted to see what they was like,also the cost. When l asked,who would be paying,they went very quiet !!!! Told them,that they would have to provide them,cause it would be part of safety equipment,am l right ??I think they are bottle openers, lol.
Im not a massive fan, but id rather have the pain of using one, then lose one of my tools, especially my Spanner.
They are handy for if your working over a river or something like that.