My friend Ben is great at nicknames. One of the crew back in the day earned the nickname Kodak. And why? It was because he was so negative (from the days when photos came with negatives - shows you how old I am).
It was like having a toxic friend, bless him. It doesn't matter how good your mood was, Kodak would find a way to bring you down.
We all have negative moments. Alan calls out the difference between radiators and drains. Some people heat you up, others suck the life out of you. The reality is most of us oscillate (big word for a Friday) between radiator and drain. The more we radiate the more productive we will be, the more opportunities we'll have and the more fun life becomes.
Don't be like Kodak. Go put on a Beyonce and Motorhead mash up and shake your ass. Even if you don't feel like it. Especially if you don't feel like it.