Walk?

[bigzilla]

I am sure this has been discussed before and I may be asking to beat the dead horse, but I have only been on the board for a couple of weeks, so bear with me:

1. A player dives on the floor for a lose ball, grabs it, and continues to slide on the floor with the ball in his hands. Walk?

In the above, would it make a difference he had been the one who was previously in control before it became a loose ball?

2. Player dives on a lose ball, taking control of it as he lays on his stomach, and then rolls over onto his back.
Walk?

3. A pass to A1 is somewhat off target, and he slaps at the ball as it is going past him. It then hits off his left leg, then his right, all the while he is moving, and he takes three or four steps while the ball pinballs around between his legs. I didn't call a walk because I didn't think he had control of the ball. The opposing coach may be in ICU by now, unless he calmed considerably. Was I wrong?

Thanks again to those more experienced.