
"If you're under water, struggling and disoriented, blow bubbles to know which way to swim.
I inhaled water coming out of a big water slide that dropped me from height into water. The water from the slide pouring down directly on me was creating a current, I was stuck and don't know which way was up. I'm a fairly strong swimmer but panicked. I blew some bubbles and was able to work out which way to swim, just about dragged myself out of the pool on time, and coughed my guts up whilst the lifeguard carried on staring into space in the other direction
Edit: I think the original advice I was thinking of was to spit when buried in an avalanche to know which way is down."
Poultry bones are prone to splinter and can cause serious punctures. Cooked bones of any kind are also brittle and can cause problems.
Raw bones are safer for your dog.