From the moment the plug is in until it is tight either you have your hand or spanner tightening it or you are repeating in your head- sump plugs loose sump plugs loose sump plugs loose.
Using this as an example my hand is covered in oil so I go looking for a piece of rag. Sump plugs loose sump plugs loose sump plugs sump plugs loose. Until I put my hand back on the plug and continue to tighten.Then I go looking for my ratchet. Once again sump plugs loose sump plugs loose sump plugs loose sump plugs loose. Until ratchet is on the plug and tightening
Why is this rule important? Well I’m glad you asked. Say you get oil all over your hands as before you go looking for that piece of rag except you left it at the other end of the truck. When you’re greasng it. While you’re at the other end of the truck one your workmates walk past and starts telling you a story about how he lost his virginity on the weekend. hahaha hilarious anyway I better get back to servicing this truck now where was I? I’ve greased it, changed the oil. All right I’m done underneath. I think you can see where the story is heading truck goes down the road sump plug works its way loose, loses oil. Hopefully the customer sees the check engine light or oil pressure light come on. If not, blows up his engine. Now you’re up for a thirty thousand dollar engine. Your boss is not happy. It’s such a simple easy mistake to make but has massive consequences