So, you’re at a party, and a friend brings a six-pack of fancy imported beer. He passes out a brew to you and a few other friends. One friend tries to twist off the cap. It doesn’t budge, so he twists even harder. Although this is slightly amusing, you decide to save him from cutting his hand open.
You kindly remind him, “These aren’t twist-offs”. He is slightly embarrassed, but these feelings fade as the group begins to realize no one has brought a bottle opener. What good is a bottle of beer if you can’t open it? No worries so long as someone in the group is carrying a disposable lighter.