Is it normal to play with your poo?

I have an ostomy bag because I've had my colon removed and butt sewn shut. All the poo drains into this appliance. It's always watery and when I eat nuts or veggies or insoluble fibre I don't digest it. I have this habit when I squish the pieces of, say, corn or carrot through the plastic of my bag. I do this all the time and find it very satisfying. Is this normal relevant to my health situation?