IT'S LONG PAST TIME FOR SOMEBODY TO BUY HIM A TRAIN SET.

"Tenured and Making $0?"  The poobahs of Purdue have an interesting way of pruning deadwood.

Later, in early 2022, the department head wrote that “For more than a year, the Department of Mathematics and the College of Science have warned you that your failure to meaningfully prepare for and adequately deliver instruction could result in disciplinary sanction. We have provided helpful resources and feedback to you, which you have largely ignored.”

That email said, “We have provided explicit examples of what successful preparation and delivery of instruction entails. Your failure to meet any of the four criteria that were due on 24th of January, together with unsuccessful completion of two prior iterations of criteria, demonstrates that you have no desire or intention of providing adequate instruction.”

The mathematics professor in question has not wanted to go, and the university is not being subtle about wanting him to go.

He's over seventy, and apparently has not visited the Purdue model railroad club, or taken up some other hobby.

You can walk away from it if you want.