I’ll keep it brief! Where I work there are about 5 of us. I and one other work part time, the other 3 work still part time but closer to a full week. We occasionally do nights out, etc. I’ve recently been doing many extra shifts to help out (gladly) - although it is inconvenient for me I’ve been happy to pitch in. Anyway, I realised the other week the 3 of them have arranged a night out and I haven’t been invited (nor has the other part timer). I might well have not gone along on the night out even if I had been, but it would have been nice to be included. Am I being very petty and precious and to feel a bit miffed at not being invited along?