A mate of mine who used to be an installer who worked for Kelly,s in Teesside about 13 years ago once drilled thru an external wall,and thru a hibernating tortoise which was in a nest/bed in the garden at the other side.When the QI inspector came from installs to do his business he checked for cable depth and said to the install crew,"Sorry lads im gonna have to fail the install cos you hav,nt put a grommet either side of the tortoise"!!!!!!!!!!!!!!!!!!! HONESTLY. My mate never told the cust so god knows what happened after that??? I found it funny anyway.About time we had some humour on ths site.Cheers.