It's embarrassing enough blanking on a song without some self rightous twatt subjecting you to further humiliation by banging a gong or pinning a badge on you. I admit I often have problems and blank on words and it isn't that I haven't learnt them. Songs that may be relatively new to me or have been learnt recently (often to fit in with a themed session) I am more likely to have someone sitting with the words so If I have a problem I can be prompted. It's more frequently songs that I know very well and have been singing for a long time that for some unknown reason I blank on a word and I can & have done this when totally sober so it's not only alcoholic amnesia. & then there's the problem of knowing more than one song to the same or similar tunes ( not alsways parodies) and suddenly realising part way through a verse that you are singing an odd verse from the other version!