"Would the statement be as strong if I drink them, then toss the bottles and then piss in the water?"
The crux of this issue revoves around the 'separation of beer and bottle'. You might be able to squeak around the rule though, by simply peeing back into the bottles!
Seriesly, I was handed a mug of Bud once and took a whiff before attempting to drink.
Smelled 'zackly like whizz.
Switched to Heineken and never looked back.
Quit drinking altogether a few years later, but that's another story.