The effect of initially distributing one piece of chewing gum to a single person thus attracting all others that are near whom will nag and gripe at you until you finally distribute your entire pack of gum to all the desperate gum beggars. This effect is unavoidable once a second person finds out about your charity piece of gum.

"Jim asked for a piece of gum, but I hesitated to think about the consequences. I gave him a piece completely forgetting the spearmint factor, and the next thing I knew, all my gum was gone!"

the thing that you don’t have when you’re phones percentage is over 20