Worst: From the wife: "I like this one better."
I had gotten a Mr Beer kit from a guy at work (I wanted the plastic bottles for the beach). It had an expiration date 4 years earlier. I was in a good mood so, on kind of a self dare, I boiled up some water, threw in the HME from the kit, a pound of dextrose, and pitched some harvested s-23. Put it in a 2.5g keg a week later. It had fusel, was going to dump, didn't get round to it for a month. she tried that (the fusel cleaned up actually) and liked it. Like it better than the nicely hoppy ale I had in the keezer next to it, the nice ale that I had just fallen in love with....
On a side note, it wasn't hideous, just rather boring. I will give them credit, 5+ years old and no mold in the can. And no, I didn't try the included yeast.