I was just filling the dishwasher when I realised someone left a glass in the kitchen sink on top of my favourite mug. It is now completely wedged inside the mug with about an inch of the glass sticking out of the top of it. I wouldn't normally be upset but I've had this particular mug for years and I always have my first morning tea in it! Has anyone any tips on getting the glass out of the mug without breaking the mug, I don't mind breaking the glass as it's not sentimental.