In major conventions and events, you need to keep an eye out for trouble, as you never know what could happen. Sadly, this includes spiked drinks. PR Worker for Deep Silver, Will Powers, accidentally drank a spiked drink meant for a female friend that hung out with him. This didn’t effect just him though, as other people he knew also received spiked drinks.
Shame to hear this happening, as drugged drinks should never be at major events. He is okay now thankfully and hopefully this type of event will no happen at future E3 events.
Source: https://twitter.com/WillJPowers