If we bleed in the bath shouldn't out blood bleed blue

I was watching this film and a man had his throat cut whilst he was in the bath (weird film I know) and his blood was blue and blood is blue until I comes into oxygen. So it made me think that if in the film they logically done it so his blood was blue why isn't it when we get a shaving cut or something in the bath it doesn't remain blue? And I know water is H2O so it contains oxygen bit if this is why it stays red in water then really we should be able to breath in water. Obviously this is impossible but logically it should be possible? Anyone else have any suggestions? Ahaha

I want to bleed in space now.

Okay, first of all, don't beleive movies. And second of all, blood is NEVER blue (besides that, there is oxygen in the bloodstream, wouldn't that make it red if that were true?)

blood isn't actually blue, its a kind of dirty red. we cant breath in water because you nead more air to breath than you need to make your blood read. and we drown if we try to breath in water.

Blood is blue, until it comes into contact with oxygen.
water in your bath is H2O... Hydrogen2 oxygen....
so thats why it bleeds red, because there is oxygen in water

Okay... If you know some basic chemistry,

Hemoglobin chemical composition:
C 3032 H 4816 0 872 N 780 S 8 Fe 4

This means that there are 872 oxygen atoms in one hemoglobin, which transports only a few oxygen atoms at a given time. What does that suggest? The formation of rust (Fe(x)O(x)), indeed it occurs BUT the difference it makes is relevantly tiny.

Also, you can't just easily say that oxygen comes out of water. No. Just no. In order to get oxygen from water you have to input energy which can break apart those bonds, and believe me that energy probably won't come from your water boiler. So if you have blood release into the tub, no matter what part of the body it is in it will stay a similar shade of red. Someone pointed out that the colour changes according to the wastes that the blood carries and indeed that is true however the colour DOES NOT go blue. It simply goes a darker red in the absence of oxygen. The colour of your veins appears to be blue simply because of some contrasts to the skin, but IT IS NOT BLUE. This is a common misconception and just because your textbook anatomy diagram points it out as blue it doesn't mean it's blue. Look on your wrist. See some blue? Half of that is probably arterial matter as well. When have you ever cut yourself and bled blue? Did you assume all blood in your body is oxygenated?