Wiki Entry of the Night

Wrap rage:

Wrap rage, also called package rage, is the common name for heightened levels of anger and frustration resulting from the inability to open hard-to-remove packaging, particularly plastic blister packs and clamshells. Consumers suffer thousands of injuries per year, such as cut fingers and sprained wrists, from tools used to open packages and from the packaging itself. Some companies are now coming up with solutions to improve frustrating and potentially dangerous packaging.

For example:

(via Best of Wikipedia)