The Martingale system is perfectly legal. Many online casino players use it to determine how much to stake on each hand or spin of the wheel. You can also use the Martingale system in sports betting., but a horse racing Martingale system would be difficult.

No, but there's no reason they would ever kick anyone out for that. Far more likely, the player would get a comp of some kind to encourage them to play longer.

Liga Portugal Bwin (Portugal) The Primeira Liga is the highest division in Portuguese men's soccer. It has existed since the 1934/35 season and is run by the Liga Portuguesa de Futebol Profissional and the Federao Portuguesa de Futebol.