Beware of scams

There is 1 girl ask me to sit with her, she asked for a drink. I bought a shot for her. After finished the drink, she said she want to show gratitude for buying her a drink. She started to dance in front of me, but no touching. I remembered she just dance for 1 song, right after the dance she charged me $50. I was like WTF. You said you did for the drink at first. Now you asking for $50. Somemore no touching, what is the different watching pole dance from side table. Total damage is about $50+$8 (drink) =$58 without any fun at all.