While taking the children to the pool tonight, suddenly my left back tyre burst! That was NOT good. We were practically in the middle of nowhere ... ok, there was this one dark house, but other than that it was -4°C and pitch dark. The (peculiar!) man in that house lent us a torch/flashlight and Florian tried to change the tyre, but was at a loss when he came to that security screw which he didn't know how to loosen. That was when I noticed that the right front tyre was ALSO almost flat. We were half frozen and did not know what to do (Sabine had meanwhile phoned her coach to let him know she would not be coming, and Andreas, who was in a seminar where he could not leave) - so we decided to leave things as they were, i.e. put the other four screws back in tightly, leave the flat tyre there, and very, very, VERY slowly, with the warning lights on, crawl to the nearest petrol station where there would be light and someone to tell us how to loosen that one screw. Just as we arrived there, Andreas phoned and upon hearing about that "funny screw" told Florian where to find the adapter. So Florian could change the tyre which was pierced by a huge nail!!!!!!! And we found out that there was another nail in the right front tyre! That one we could not mend nor exchange, but we filled it and made the rest of the journey home like that. So here we are, wondering how two nails could pierce my tyres, one large enough to burst that one tyre, the other sticking in it... Grrr! I am not amused!