Some idiot locked their bike to mine so I can't use it.
My bike is locked to a pipe in front of my parking spaces in my condo building. No, I hadn't planned on riding it today but it's the principle of the thing.
I've left a note telling them not to do it again and that if it isn't removed soon, I'm going to have the cable cut and the bike move elsewhere.
In the scheme of life it isn't that big of a deal but still, I'm really livid right now.