You live & learn, simple as that.......
You lend someone money & they pay you back, you lend it to them again in the future. Those that don't pay it back, you don't lend anymore.
Same goes for betting......
Does calling someone out like this instantly get you your money?
We all know that it doesn't. If the truth is known, it more than likely worsens the situation and pisses the other off to the extent you will have even a more difficult time getting paid.
It benefits no one.....
(This is not directed towards you TTinco, it's just my opinon in cases like this)