Hahaha. After playing for a while you'll learn where to run etc. I had a trail of 50 zeds after me yesterday after firing the dinner bell, realized that it was a stupid thing to do, ran through the school (it's in both Cherno and Elektro) and lost them all. Great success. You should also check out the firestation when you're in the bigger cities (the red rectangle on the dayzdb-map) as that's the only city-based military loot spawn except for military tents outside Berezino, Stary Sobor and Balota airfield.