Take @thomas_davis's point about low-pressure offers. It's so key to offer help, not pressure. Instead of saying cheer up, just be there for small things like he said. Your dad might not take the help right away, but knowing you get it means a lot. Keep it simple and steady.

Good point about pressing down on the stab housing. It reminds me of how many fixes in life depend on tiny details we might overlook. You can have the right idea, but if one part isn't seated right, the whole thing falls apart. I see this with DIY projects or even just tightening a loose screw. People often blame the tool or the part when it was just a missed step. Paying attention to those small things makes all the difference.