The joke was, it was me and three other karate instructors having dinner. Probably just as well we didn't hear it as it happened, might have escalated. All I had in the back was my kit bag which weighs about 40lb so they gave up trying to wrestle that through the window. It's Slough, a notorious area for drunks and druggies. My friend's neighbour got evicted for antisocial behaviour and stripping the air con out of his social housing, so he set the flat on fire in retaliation, heedless of the children sleeping upstairs. The other neighbours used their social flat as a cannabis farm. So I guess getting your window smashed is pretty mild in comparison.
It's annoying but at least nobody is hurt, it's cost me one hundred and I've spent the day hoovering glass out of the car. Luckily my buddy has an industrial vacuum cleaner, gaffer tape and shrink wrap to hand. I feel better now my guys helped me out, insurance will pay for most of it, a damn nuisance but could've been worse.