Ticks are quite a serious worry, I live in a country where boars occasionally attack people and next door to a country where bears have been known to eat people, I spend a lot of time outdoors and I'm more worried about ticks than I am about the larger fauna.
Can I echo this. We have bears in my locality and I'm more concerned about ticks (but that doesn't stop my heart missing beats when I hear a large animal moving in the forest, but there are many more moose than bears)
Should you find a tick attached to you, removing it in the correct way is very important. The old removal advice used to involve either a hot cigarette end or the rubbing in of olive oil. However modern research has shown that these methods actually cause a great deal of upset and distress to the tick, often causing it to expel the contents of its stomach, straight into you, thus greatly increasing the chance of infection....
The correct method is to use fine tweezers to firmly grasp the head and pull it out in one, swift movement.
But back to bears, as it's a sexier subject and for some, rather more exciting. I remember in 2006, a lady jogger was out running in the forest near here, suddenly she found herself knocked to the ground, with a bear happily chewing on her leg. She only managed to escape by repeatedly kicking the bear in the face with her other foot. (that's Finnish "Sisu" for you Doc

)
If you put this page into the Google translator (Finnish to English), you can read all about it:
http://www.hs.fi/kotimaa/artikkeli/Nainen+potkaisi+purevaa+karhua+Hankasalmella/1135219992767
But in all truth, bears see you much more often than you see them
Tong asked how to discourage bears:
- Keep your eyes open
- If you see one, don't run, move slowly back in the direction you came
- Don't run (a bear can easily out sprint Linford Christie)
- Don't leave food around you camp, clean cooking pots, bury leftovers well away from your camp
- A wounded bear is more angry than an unwounded one. Don't try to kill it unless you have a suitable weapon to kill it outright.