What a long thread to get through!
My PD employee was something. I worked at a company that went through lots of employees. I, too, was eventually laid off. The employer had laid off two Purple employees in one round. One of the Purple employees was suing the company for unjust termination with racial concerns thrown in. (This Purple employee had a very strong and valid case.) My PD was Purple and seemed to be aware of the pending lawsuit, although it was very hush-hush.
PD's less egregious sin was abusing free food. For an employee's first day or last day, I could take the team to lunch on the company. Nice, right? Normally, we'd all get burgers or some-such nice lunchy food. PD always got the most expensive option (normally a dinner steak). He'd always ask for a beer, which I'd explain I couldn't expense and he would need to purchase. (My boss didn't believe in expensing alcohol at lunch and I don't think that was the worst idea he had.) This is all fine, except at some point, he'd order a second meal. So, when I got the check, his doggy bag of a second meal would arrive -- you guessed it, another high end steak.
His real problems came from bullying the interns (one young man was in HR in tears!), 'hostile workplace environment' (which is a serious HR law -- he talked about women inappropriately), and full on s3xual harassment, where he tried to solicit relations between 3 different women, his girlfriend and himself. HR doesn't have a file on him -- they have a whole drawer on his complaints.
I've been gone for 3 years (laid off to my glee). He's still there!