If you vaped enough Alcohol it would have an effect and potentially would kick in faster. However, the amount of alcohol required before you feel it is pretty substantial. These carts don't hold nearly enough.
You'd probably need to vape at least 15ml before getting a noticeable feeling from it. This also assumes you are not a regular drinker. If you are trying to vape alcohol to catch a buzz though you probably are, lol.
Great idea though to adjust the flavor of 'assy' liquids. I also like how you didn't mention the vendors name, that was classy! Mainly because it seems this
juice thing is subjective and partially based on what device you are using.
I've also found that whenever you are eating certain foods it can change/remove the flavor of the
juice. I was eating some Brach's Butterscotch discs the other day and when I would vape my Watermelon or Pineapple flavors I couldn't taste anything. The overwhelming sweetness of the candy just drowned out any flavor that would've been there.
So you can maybe try that as well to neuter your nasty sweet tasting liquids.
-Danyulc