The image below is of a poorly handled field-dressed deer. As you can see, the body cavity is heavily contaminated with leaves, dirt and sticks. A few ticks were noticed crawling about, feasting. Such extreme contamination can be minimized with more careful handling.
The reason I’m posting this is that, with deer season approaching (or in full swing in your area), you hopefully remember this image and are more cognizant of keeping your food clean when field dressing and transporting your deer. For this deer, such extensive contamination resulted in heavy trimming of the carcass, which greatly reduced meat yield.