Ever think about insurance if your uncle had started a fire with that wet mortar? You'd be stuck paying for everything yourself. Family never wants to cover the costs when they mess up. Your insurance could deny the claim, saying you should have supervised better. Now you're not just babysitting, you're protecting your own money from their good intentions.

Ugh, that pink tint nightmare. Before trying what @jade_mason98 said, check if your primer was white or gray, because that base layer can totally throw the final color off. A fresh coat of the right primer might fix it without color mixing. Test a small section to see if it kills the pink.

Gold's Gym in '99 taught me the same thing.