Coffee and tea both do it, but both depend on how strong they're brewed and are generally easier to push through than any alcohol I've ever tried. Espresso though is vile no matter what. Salad generally is fine though depending on the vegetables used certain ones are more powerful than others. Like lettuce on its own has this weird finish to it and that's the extent of the unpleasantness.
As for alcohol I've had a few different kinds of rum, whisky, vodka, a few different wines, and basically I can't tell the difference between anything that isn't the wine. It's like once it hits a certain proof all I can taste is the alcohol part.
They're supposed to have different tastes? I've tried several different kinds of rum and vodka along with a Buddy of mine buying some Crown Royal Black to share with me at my 21st and I couldn't tell the difference between any of them. I could tell the difference between a few of the different beers I've tried but none of them tasted anything like they were described to me.