Many parts of the US prohibit carrying firearms in the wilderness. This is particularly true of National Parks.
On the off-chance of being attacked by a bear or some other large creature while camping/backpacking there, do you think its possible to incapacitate them with a Taser?
Anyone's thoughts on this? 
1.  Tasers are short range, single shot and require controlled activation.  They work well if backed up with a shotgun.
2.  I carry a 10" AOW pump shotgun in the pack.
2.  Don't ask, don't tell - carry a big bore hand gun.
3.  Pepper spray - at least 4 oz.
4.  The 15 minute road flare mentioned is not above consideration.  At least you will have 15 minutes to get your personal effects in order if the threat is human.