i have had my drink spiked twice in my life, once was on holiday in Spain, by an incoming group of holidaymakers, i was so ill that i am surprised they let me on the plane, i was sick all the way home, the second was a pub i worked in, i was off duty and popped into pub on the way home and some of the customers and the manager of the pub thought it hilarious to spike my spritzer with vodka. I couldn't taste it to be honest, the after affects could have death, as i didn't realise that i was that drunk, it could have been fatal.