My responsibilities include doing whatever the heck Odin feels like telling me to do on a whim, not listening and/or doing whatever Odin tells me to do on a whim, causing mischief and making everyone else's lives absolutely horrid. :)
In regard to the animals and other things related to me I would like to say that was ONE TIME. One time I save the sun, the moon, and the lovely Freyja from being shipped off to Jotunheim and what do the Aesir do? They tease me about it for the rest of my life. Yes, I turned myself into a female horse and had Sleipnir. Yes, the male horse was never heard from again, but, hey, I saved the day. It was either that or death.
One plant that I guess you could associate to myself would be the mistletoe, but that's a story for a different time.
I am mostly known by the Nordic people in what is now Norway and Sweden, but I can be compared to several deities that are found throughout Europe.
I am not one to be trifled with and if you do happen to cross me I can guarantee that I will stab you back in one way or another. Just ask the Aesir and Vanir. I was never one of them, they never accepted me. I was the outcast, the black sheep that was in the background waiting to be called into the lime-light and I made it there, too. Until, of course, Thor had to mess it up and I went back to the shadows, but that's another very different story.
I do not have what most would consider friends, but I don't seem to have a short supply of enemies (i.e. all of the gods in Asgard and then some. -.-)
A very distinguishing mark that you won't be able to miss when I come to visit your puny school is the scar that runs zig-zag across my lips. It was put there by a dwarf named Brok. Someone I wasn't able to get back, but, be rest assured, I will someday.