[brianwawok]

As a business decision, are they ok with failing 9 good checks to block 1 bad check? I think most retailers would be.

[lotsofpulp]

Probably because they only get 2 checks per year. And the likelihood of someone trying a scam given that they are using a check is already high.

[kube-system]

Most retailers are okay with denying all checks.