I’ve taken to using an old jacket to cover my carboys when they’re in the initial yeast growth stage. Darkness, I’m told, is excellent for yeast growth and it’s not like I can use the jacket anyway; it’s torn up in places so why not give it a second life?
However, one of the cats (you know who you are, Gypsy) has decided that peeing on this jacket is OK. Just another example of cats being dicks. Although I take the jacket off and wash it, I suppose it’s useless to me now and I need to find another way to shield the beer from light.
Until this morning when I find that the carboy has blown out. Then, 8 hours later, it was blown out again. What a mess!
It would’ve been worse if the jacket had been on there, stuck to the carboy. So I suppose it all worked out. I just don’t want that cat to get too much credit. Damn things will start to pee on everything, thinking they can improve stuff.
A pint for Dionysus 
Perhaps Gypsy was making a comment on that particular beer. Try asking him what he thinks of your next batch before you brew. No pee, brew free; kitty piss, you can miss. (Proverbs for brewing)
I did try a new method with this batch.
But if I’m taking advice from a grumpy cat for beer, that’s trouble.