We're in Mexico for our honeymoon at a really nice hotel in the Rosa district of Mexico City years and years ago and we ask at the bar what beer they have.... The waiter rattles off a few Mexican beers and the wife asks, what about Corona. The waiter tells her, no one drinks it in Mexico because it's "agua de orina" (water of piss).
Everytime I see a Corona since, that's what comes to mind.