We told a client who has been making ridiculous changes to a project (an entire hotel, and they're modifying things that have already been built) that they needed to order the several dozen TVs NOW.

It was three months ago that we first said that. Order them. NOW. Get them in. Better to have a container full of TVs than get caught by some bizarre delay that nobody could have planned on.

Yup, they haven't ordered the TVs yet and now they face a months-long wait.