if you run any distance, and you don't experience feelings or symptoms of deyhdration, then you didn't need water. i'm no camel, and I can easily run 90-100 minutes without stopping for water. is it sabotage ...? probably not - unless you intend to race differently than you're training. if you're putting in longer runs, then I suggest stowing aid at planned intervals along your route, or simply make your route pass by the same location every 3 or 4 miles. for my longer training runs where I integrate aid, I run a butterfly route around my town that passes by the same point every ~3.5 miles (called a butterfly because it converges but never overlaps)

If it's cool outside, I don't worry about water unless I'm going 14+ miles. When it's hot I plan on getting water if I'm running more than 10 miles.

I've run by parks with fountains, by my house, and I've driven out to drop off water bottles.

I sweat a lot while running. I have a fuel belt and have gone through 7 of the little bottles in an hour and a half. That was at about 9 PM. But I live in Phoenix. I never go on a run of any distance without something to drink. For shorter runs I use this http://www.nathansports.com/our_products/hydration_nutrition/quickdraw_p...

That link doesn't work. It is the Nathans QuickDraw Plus

Remember, when you start training for HIM/Im that you won't be starting your run after a "short" ride. Fluid mistakes you make on the ride can kill you on the run in longer races.
Under an hour you shouldn't need anything, really unless it's extremely hot or humid. Plan your loops accordingly. I'm lucky to have a state park 200 yards away where I can run for hours and hit 12 or more fountains if I need them.
I agree with tsilcyc...check your urine. You can't go by 'feel.' By the time you feel thirsty it may be too late. Another method to make sure you're getting enough is to weigh yourself, naked, pre run. Do the same on your return. Drink 6-8 ounces of fluid to make up the difference.

I use one of these:

http://www.amphipod.com/320/320.html

It doesn't bounce around and it has tons of room in the pocket.

What skyrone said reminds me that I never mentioned that one of the main reasons that I carry water on shorter runs is safety. I just think that if something were to happen to me, at least I would have a bit of water to hold me over until help could arrive. If needed, it could help my flush a wound, cool myself, whatever...

Once there was a time when I was dropping off water bottles before a long run. A lady driving by saw me hiding water bottles behind a bush and yelled "You litterer!!" and gave me the finger while driving passed me.

Priceless!

My lil brother showed me something yesterday that I never thought of, but should of. We were running on a road that's next to a golf course, and he asked which holes have cups of water. I told him that I never thought of checking. Luckily, it was a well maintained course that still had cold water in the cooler at 8:00pm. Awesome!

I would rather have it and not need it then need it not not have it.. I vote for running with a bottle /belt for your training and practice your hydration/ nutrition on long bike run bricks. Get used to bringing a drink with you in your training and on race day you be ready what ever way you decide to race.. plus one on the pee test its a good indicator of how well you are hydrated

No, I had too many mixed emotions at the time. At first, confused, I wasn't sure of what she was yelling/ or why she was flipping me off. Then for a moment enlightened because I figured out what she said. And finally when I became angry, she was long gone.