This may be urban mythery but I heard that in London there are professional tramps who have been seen getting into their Porsches after a hard day's begging! Dunno how much they earn generally though, the ones round here don't seem to get much!
Not really worried how much they earn so long as they pay Taxes. We know they can write off travelling expenses and some entertaining expenses. And personnel pensions are Tax free. But they should always pay their Taxes