If I plop down a lurking monster, I do so because I want to showcase it's awesome ambush routine or whatever. Not to see it being instagibbed before it can act.
We are definitely different.
I remember when a lurking giant constrictor snake dropped from above a doorway down onto the pointman PC -this should have been a Surprise situation, only the PC had Alertness and won init. He was also an Assassin Rogue I believe. He killed that poor snake before it could get an attack roll!
What I remember about that was the bathetic end of the monster and the extreme delight of the player. The sad demise of 'my' monster didn't bother me at all.