Sometimes, when I don't get to ride my bike, like today, I do something evil.
Today, I threw away a pastry that one of my coworkers brought to me to eat. This coworker always brings me pastries even when I say I don't want any and politely decline. Today, I took it, thanked her enthusiastically and when she walked away, I dumped it straight in the trash. She paid for that pastry.
That was evil on my part.