How do I bathroom / kitchen / extension? etc.

Is that a thing? Bundle them all up in there and yank it out?

Of course it is.

In other non butt-play news I've just drilled a fuck off big hole in a wall. I asked for advice from Speedy hire when I picked up the corer and transformer this morning - they said 'get someone else to do it'. Which is a fair assessment. It was shitty and very hard work. I happened to find a brick running in the opposite direction to all the others so it went straight into the core. It was wedged in so it took much much much effort to get out - using long drill bits to get at the mortar around it, hammer and chisel to take bits off the front etc. Eventually got it out then managed to carry on. It got very tricky right at the end - on the far side of the brick it had a layer of old concrete covered by more recent pebbledash. The concrete was very tough to get through and nearly broke my wrist several times even with the clutch, but I got there by starting the drill further out and just feathering it gently. My wrists and back are knackered. Brick dust is fucking everywhere (except my eyes and lungs) and my wife hates me.

All that said I would still do it again. Though I hope it's not for a long time.