How to deal with inappropriate behaviour from my neighbour in Poland

I recently invited our new Polish nieghbours to our place and we had a few drinks, he was very inappropriate with my wife, and tried to dance with her a number of times, as we were sitting down he kept starting at her and said Kurva Mac (pronounced March) about 10 times ... he was later being aggressive and i asked him to leave.

now my wife is very worried what this means ... as he lives above us and i am often working late.

please can you help?

He lives on a bridge?!

the flat above us

You should just call the police, they would take care of him.
Now it would be good if you talk to him and explain that this can't happen again because.. (see above)
I hope that this behavior is not common for your neighbor and it was just caused by too much of alcohol. Don't drink with him again.

I think we all know how its pronounced, thanks for enlightening us. If youre going to tell us though, tell us correctly as its pronounced more like MATCH than MARCH.