Do you load forwards or backwards?

A question to all you zero turn users out there. Most manuals I read say to back your zero turn onto your trailer. I never see this done and I don't do it either. Who loads it backwards and why and who loads it forwards and why? Convenience? Safety a factor? Too much tongue weight if loaded with the engine by the tongue? I have seen some rather unfortunate disasters from backing them off trailers. Most were preventable of course. Do you have room to do a 180 degree turn on your trailer if you load forwards and then turn around forwards? Interested to hear an stories or testimonies