People get mad and say things they don’t mean. Many couples will get to the point of yelling and screaming at some point if they are together for a number of years. (Some people may never fight, and good on 'em!)
A fight isn’t the issue: It a person’s willingness to forgive and forget is what should be measured. That, and a person’s ability to be remorseful is extremely important here as well.













Like most planes, the wings are mostly fuel tanks. https://www.heritageconcorde.com/fuelgeneral
Your picture shows the scale quite well, actually. Imagine that girl sitting in the cockpit and then imagine the size of the barrel compared to that.
Fuel is typically measured by weight in aircraft so “a full tank” might be different based on the density of the fuel.