Yup. A friend of mine had his wife do something similar (first time) during an economic slowdown after he got laid off - she all the sudden started spending waa

Yup. A friend of mine had his wife do something similar (first time) during an economic slowdown after he got laid off - she all the sudden started spending waaay beyond even their pre-layoff means ($60k something on credit cards) while hiding the bills and stuff she was buying. Luckily he figured out something was wrong before they went bankrupt on top of everything, but yikes. And at that point, divorce won’t solve his joint liability for the balance. At least the younger sister can only guilt the family into trying to cover her butt financially, instead of - well whatever that was.