D'aaawww- This group is rather adorable. And it's funny for Derpy and Dinky to both be scared by the storm. I guess it's a good thing Derpy works as a mail carrier instead of part of the weather team. And I hope they didn't raid Carrot's fridge again.
That and there are some theories that Derpy's cutie mark represents bubble wrap, basically she's good at carrying large, fragile objects without breaking them. The dropping in 'Feeling Pinkie Keen' could be explained as either Derpy not fully paying attention and/or a mistake on Raindrop's part.
And one shouldn't eat before going to bed. Hopefully Derpy and Dinky know that.