My in laws are here visiting in their new electric car. They’ve plugged their car in every evening for the whole week using an extension cable. Never once offered us money to pay for this, or even asked us - they just plug it in. If it was just one night of charge I wouldn’t mind, but every night for a week? They are wealthy and holiday all the time, we are struggling to hover above the breadline. How much does it actually cost to charge a car and why is it assumed that’s it’s ok to do this? It’s not the same as just charging your phone is it. Am I being cheap by letting this bug me?