Thank you all for your advices and good thoughts. After lunch yesterday, I started bringing him outside every half hour of about and the problem stopped. He was drinking a lot, so I removed the water after supper, brought him outside at around 10 o'clock and he slept very well and no pee!
We will keep this routine for the weekend. I don't know what is going to happen on Monday, whwn we will go back to work, but we will cross the bridge when we'll get there!
So thanks again:love: