Gotta love the ones who can't resist telling you how much better they can do something or how much cheaper, taller, run faster, jump higher, yadda yadda yadda. They are sssoooooooo insecure about some shortcoming somewhere.
Good responses to them:
Go for it.
Knock yourself out. (my personal favorite)
Stop talking and start building.
Let me know how that works out for you. (another favorite)
I'll believe it when I see it. (Jim's favorite)
I'm retired and I thought I'd just leave it to the experts. (Jim's very favorite)
I thought about that too, but I already have a garage full of projects.
I can build a great martini, trailers not so much.
And the ever popular: Whatever.
Oh, Jim's got a classic bad murder mystery waiting on video.
Later.
Sue