Isometric sketches for boiler pipes always confused me, but a coworker's tip finally clicked lol

My client's hair started snapping from a simple treatment

Turns out the bonding agent was way too strong for her fine hair. I dialed it back next time and no more breaks, so test a strand first lol.

Serious question, I thought letting clients skip the consult was no big deal

I figured if they knew what they wanted, it was fine to just do the treatment. But a client with rosacea had a major flare-up after I caved. Now I never start without a full skin check first.

Stumbled on a vacuum leak fix for a Civic misfire that had me stumped

I had a Civic come in with a random misfire that only happened under load, like going up a hill. The owner was sure it was a bad coil, but after swapping them, the trouble code moved. I checked the spark plugs and they looked fine, then fuel pressure was normal too. I was stuck until I grabbed some carb cleaner and sprayed it around the vacuum lines. The engine rpm jumped when I hit a spot near the intake manifold. Found a tiny crack in a hose that only leaked when the engine worked hard. Replaced that one hose and the misfire cleared right up. It's wild how a small leak can cause such a headache, anyone else deal with vacuum issues like this?