I learned this from a 1000 ways to die episode years ago where apparently a retired science educator broke the filament of a lamp fixture and placed the pickle there instead and one of the caretakers grabbed the pickle and got electrocuted.

I am skeptical of whether that would actually happen as I am pretty sure a majority of the current would continue to pass through the intended path and thus unless a heart condition was present then there shouldn't have been a risk of major electrocution... However even then I don't think enough of the current would pass through his body.

Point is, I knew that pickles would light up due to watching a morbid show when I was younger