We had a kid’s Frog bike with the bars ripped off last week. In fact we had 9 bikes in week with the cockpits ripped off, so there’s clearly some cunt going around with a 4/5mm AK ripping people off. Generally the plod don’t give a tin shit.
Indeed, opportunist with an AK, the other modus operandi that we see a lot is that they don't even bother undoing the cables, just snip through them and gone!
You assume the thieves know what they are dealing with - they usually don't.
An opportunity to make a quick buck, that's all it is.
On another note, lock your front wheels, otherwise that's another quick buck.