Consider this evening to be our penance for the excesses of last Wednesday.
I thought I already did that on the BRT!
I found that my front tyre was flat a few days later. I think that some mud must've pushed it's way in through the cut in my tyre, seeped through the carcass threads and worn the tiniest possible hole in the inner tube
That hole and its cause took quite a while to find. I pathced the tube and threw a patch on the inside of the tyre too, since a small length of the cut was visible there as well.
I could put my brand new tyres on for tonight, but I don't fancy off-roading them, so I'm either going to chance the existing ones, or ride a different bike. I did check last night to see if I could get the original 'cross tyres (@35c) on with the mudguards, but there's (just) not enough clearance under the fork crown for that