Sean Payton was hit with all the hard questions during a conference call with reporters on Wednesday ... and like a true pro, he had the answers to EVERYTHING -- even a pesky stain!!!
"Let me ask you a question," the reporter began -- not knowing everyone in the call could hear him -- "I spilled mustard on my suit..."
And, before the reporter was able to finish his thought -- or realize he wasn't muted -- the New Orleans Saints coach came through with some sound advice!!
"Generally with mustard, I'd use warm water," Payton said.