What’s the hardest you ever laughed?

I don’t if it was the hardest but it’s the last one I remember. Before covid we went to another town for some shopping. There was a new ice cream / candy shop in the mall that made some refreshing drinks with ice cream in them. I wanted one. The young woman behind the counter made it, and suddenly the drink just drops. It lands on the counter in front of her while she’s standing with the lid in her hand, and you can imagine how it looked when the drink went upwards like a reversed waterfall and covered her face and chest. We locked eyes and we both just burst out laughing.