Vendors with free samples of food on toothpicks, crowds vieing for walking space, delicious food challenging us, and seemingly no place to sit and eat it - that's Quincy Market at lunch time. We reached the central dome and every seat was taken except for two in the balcony. Up the stairs and yes they were still available. City pidgeons got out of the way as I rushed to the coveted benches. My husband politely waited while I went back to the vendor with the free sample of chicken cooked in lemon and garlic sause, and I bought a roll-up. Then he found his favorite and as we ate our acquired treasures the pidgeons flew over our head, fanning us with their wings. To answer your question, there was no mess anywhere.
After we finished our lunch we gathered our belongings and as we got up to leave our seats were scooped up by the next wave of diners.
The lunch crowd was thinning out so we went back through the vendors to check out desserts. Prize chocolate candies, cakes of splendid varieties, and oversized cookies and delicacies of every nature challenged us to throw away dietary caution.