I just noticed your signature where it says "sorry for my English". I see Hamburg in your location but your English is so good I thought maybe you are British or American and living there. No apologies needed! the US educational system basically ignores foreign language instruction, so we struggle (I'll speak for myself--I struggle) when we travel. I always try to learn some useful phrases, but I'm sure I don't do well. This is a huge complaint of mine with most of our schools--foreign language instruction isn't required and it starts so late, it's hard to learn the correct accent.
Didn't mean to go on about that topic. Your English is excellent!