You shouldn't half-ass things.
John is assembling a wooden table that he ordered online.
John is tired and wants to go to bed.
John postpones building the table until tomorrow when he can do a more thorough job and goes to bed.
John rushes through the building instructions and doesn't end up using all of the required screws so that he can go to bed sooner.
John has to wake up early to finish the table and is tired at work.
The table collapses the first time John uses it, and he ends up breaking his toe.