Here is a picture of my mug while hiking in Baxter State Park in Maine. If you notice behind me there is a young bull Moose. You can tell by the face, I don't feel to comfortable.
Yup.....They're not afraid of much !! Large bulls where I live have been known to charge passing Iron Ore train cars and bounce off and continue on their way. Big Animals !!
When I worked for the Forest Service cruising timber I found lots of skulls by the tracks. I used to have a nice moose antler collection. I was told in the rut they sometimes basically commit suicide by charging the trains!