Niko instantly put his Phone away when he takes damage
Well that seems like the logical thing to do. If I was being shot at the last thing I'd be doing is talking on the phone. It's not like we're talking about GTA V here where logic and any common sense is thrown out of the window in that game.
Here are some other things you may want to know about GTA IV my friend..
-The strip clubs don't restrict gun play and you can shoot them up at will.
-Every piece of clothing is completely interchangeable. Unlike.......
-Vehicles can be turned on or off.
-Mohammad (Roman's taxi driver) is hilarious when he makes remarks towards Niko.
-It's possible to jump from a helicopter into water and not be killed on impact.
-Niko will grab and hold onto ledges rather than making a dick of himself and face plant.
-Cheats can be actually saved in the phone.
-Moltovs aren't as rare as a Unicorn.