What's the best way to dispose of roadkill if it's by your house?

I live in a suburban area (more like inner city slash suburban) and a possum got hit by a car right outside my house this week. The next day somebody took the carcass and flung it to the end of my driveway.

Long story short, it’s getting hotter outside and this thing is gonna start smelling really bad. And my yard (house to street) is very small. What’s the best way to dispose of this animal? Down the nearby sewer drain? In somebody else’s yard? What?