Showing cards. What's your opinion?

[SpeakEasy]

Here's something that has an interesting effect, from time to time. You win a good sized pot before a showdown, say when a player thinks, thinks, thinks, then folds to a big bet you made. He asks something like, "Did you have it?" Or maybe, "I assume you had the flush."

My response: "Good laydown."

This gets them every time -- you can see the aggravation in the chat box, one way or another. "BS" he responds, or maybe "Then why didn't you show?" Or possibly, "You're lying." I never respond further.

Regardless of what he thinks, the ultimate effect is distraction by the previous hand, wondering if he did make a good laydown, got bluffed, whether I was lying, etc.