Leaving their mark

We had this annual all India conference of some sorts of surgeons in our campus. It was indeed a grand show. Early morning I found them in their warm business clothes in the lobby, having coffee. I did not pass by at noon, but the activity must have indeed been equally festive in the area set up on the lush lawn for their lunch. I went home the other way and missed the scene in the evening. But the fine surgeons did leave their mark behind. The next morning I went to work and found the lawn and adjacent path littered with styrofoam mugs. Probably the same surgeons must be throwing their hemostats on OT walls when they don't work in their institutes. When the coffee mugs did not yield any more coffee, the best thing to do must have been to throw them away. Luckily the third morning the area was clean again. Probably one leaves an ever lasting mark these days.