I’ve had two friends who have had their drinks spiked – in the first case, we got her home and she was rolling around the floor giggling, trying to catch imaginary frogs.
In the second case, the friend in question became immensely paranoid and tearful, and thought she could see stuff trying to break into the car as I was driving her home.
In both cases the effects occurred whilst we were still at the nightclub – both were fine the next day but couldn’t remember anything.
Aaaand that’s when I became designated drinks watcher as well of designated driver. The joys of being teetotal…