Alanabit, how do they know if you busk more than half a day a week in Munich?

In Toronto, busking on the street is fine; the only confrontation I've had was with a bank security guard. You need to do an audition and buy a licence to play on the subway, but some find it worth the risk to busk there without a licence.

In Ottawa (Ontario, Canada) most of the street is fine, including the Byward Market area, but you need a licence to busk on the Sparks Street pedestrian mall.

Any experiences in Prague or elsewhere in the Czech Republic, anyone?

Marion