Then is not your fault. Don't feel bad. He is answerable to his boss and if new colleague cannot cope he's answerable.

Just do the handover with HR or your colleague whom the new colleague may work closely, cc'ing your uncooperative boss....make sure to mention in the email, a line saying:

"In light of Mr. (Your boss name) unavailability to do a handover with me, I am writing this email to you to perform a handover as my last day will (insert last day).."

HR needs to respond for sure, or else they will get screwed for not doing their job. Your boss may / may not respond, is fine.

If boss didn't reply, is true he is not available and it's not your fault. If he replies it means he has to give a shit and make a decision whether himself or someone else will do the handover.

Do that, and quietly leave...sayonara..life is too short to give a fuck about a bad boss, or a bad company

This post has been edited by Oklahoma: Aug 15 2021, 12:16 PM