soon to be unemployed

I drunkenly left an upper decker in my boss’s private toilet 2 weeks ago when he went on holiday because he’s a massive cunt and I hate him. It seemed funny at the time and the thought of it fermenting there and his reaction when he finds it gave me great joy, but now as its getting closer to his return to work I’m absolutely terrified because it’s quite a serious thing and I don’t know if I’m going to be able to blend it when he interrogates everybody. I’m fucked.