Meine slowakische Katze und seine halbslowakische Tochter beißen mich ständig, obwohl sie mich mögen?

I guess you come from a production line with high meat content

If it doesnt hurt you (meaning the cat is not using force to bite your fingers) then it is a sign of affection. Cats (and other felines) do this to show they like you.

Yes, this is totally normal for Slovakians. We have love/hate relationships with foreigners. Give them some money and they will be polite.