or reading "t's and p's in the green" without actually visually checking this.
Or in the case of engine start they start the thing, then fanny around looking for the correct page in the checklist then start reading it.
Starter warning light h'mm by the time they have got to that bit in the list the thing would be well shagged.
T's and P's in the green h'mm no oil pressure thats the engine shagged as well.