What silly things upset you?

Courtney
So last night my fiancé bought me 2 bottles of milkshake as it helps with my heartburn, I had one last night and saved one for work today. This morning I go to the fridge and it's GONE! My brother has taken it!  I feel really silly and pathetic because I am genuinely upset about it to the point I could cry! 
Just wondering what silly things others have got upset over...