I'll be Upstairs! - A fake excuse used when you're about to do something that sm

A fake excuse used when you're about to do something that smells like a disaster.

I'll be upstairs! (He came back with a broken lamp and a new side hustle: lamp repair.)

I'll be upstairs! (He came back with a shirt that had spaghetti on it.)

I'll be upstairs! (He came back with a new life goal: 'To never eat pizza again.')