Not only is that terrible in general, but you just KNOW Billy's going to open the root present first, and then everyone will have to wait while the heap is rebuilt.

"Tree", by Randall Munroe, licensed under Creative Commons Attribution-NonCommercial 2.5 License

Alt Text

Not only is that terrible in general, but you just KNOW Billy's going to open the root present first, and then everyone will have to wait while the heap is rebuilt.