Mii 60PS drunk

Huhu, this morning the Seat didn’t want to start from my treasure, the starter turned happily and I could not find any sign of a weak battery, there was only three weeks ago a new, larger dimension, the previously installed had abandoned the mind, but 1 1/2 worked without any problems. Luckily my car master of trust came quickly long and looked at it, hung the start aid and started with the poor Mii running very rough, but then caught and ran clean. He thought he was probably drunk, but actually he was only 10 days not moved and stood there, we should watch it. Well my question, how then probably the excess gasoline found its way into the combustion chamber and whether we have to think about it, he has a running performance of about 190000 and never had problems, no short distance operation etc. but always constant 15km to work and just so many retour. Errors were not deposited and Marder tracks I also searched in vain. I look forward to your feedback