Great advice! Go talk to your low-level redundant DM about one of their reps taking medical leave..maybe advise them to stake out at the rep's house and follow them around for the day too!
Let us all know how that works out for you.
Someone said it earlier in the thread- a dm cant TOUCH a rep out on medical leave, it's a huge liability for the company. Also with HIPAA etc, there's no way they can prove anything, even if this rep was actually doing something fraudulent
....which you actually have no proof of except, for some hearsay