New shoes but nowhere to go

Fizz and Sonny had their shoes put back on just before Christmas in anticipation of starting their 2010 fittening programme - I think their has been frost ever since! So, Fizz is still confined to his stable due to behaving badly in the field and laming himself when given the chance, and Sonny has the occasional day out on his own in the field due to his constant niggling of the others to (play)fight if he goes out in company. Buster and Roscoe go out during the day and Jaffa lives out but now has two rugs on.
On Christmas evening, we tucked Fizz, Sonny and Roscoe up in their stables and fed Buster and Jaffa at the gate at 5pm - four hours later the police called to say some horses were out, were they ours, and it was them - I thought they must have broken the fence, but someone had opened the gate, untwisted the barb wire round it and pushed it inwards to open it - A stray walker, a drunken prank or an attempted theft? Nothing has been ruled out and those that were not microchipped now are, which along with the ones that are freezebranded at least will help us to find them if they get out again and make it more difficult for people to move them if they are stolen.
Hopefully we will soon be able to get them all back into work, with several weeks of road work to strengthen the legs first, and then some local dressage classes before lambing starts.