I have a guy was that way
I help in out selling him mower parts at dealer price
We agreed, We wouldn't bid on each other stuff.
Until one year I lost 5 bids to him. The funny part is He is paying retail rate for his blades and other stuff now and not from me either. I ended up getting 3 of the 5 back he keep the other 2 they suck.
Then I had 2 kids getting in mowing business and they told me face to face they wasn't going target my stuff but they told other LCO that they going knock me out of business.
Snyder's New Lawn Service Inc.