Mine detecting rat:
Magawa the African giant pouched rat has won a PDSA Gold Medal for his work detecting landmines.www.bbc.co.uk
SWMBO: That's amazing, a rat that can detect UDIs !
Me: What ? Eh?
SWMBO: UDIs ! A rat that can sniff out UDIs !
Me: Do you mean IEDs?
SWMBO: What are those then?
Me: Improvised Explosive Devices my darling,
SWMBO: What's a UDI then clever clogs?
Me: Unilateral Declaration of Independence.
SWMBO: What's that when it's at home ?
Me: Zimbabwe used to be Rhodesia until........................I'm just going to walk the dogs, see you in a bit.
At least it doesn't sniff out IUDs.
Rat up a drainpipe?