This is not the greatest riddle in the world, No, This is just a

Sometimes I'm fudge Other times I'm a potato chip If you see me in the water It's a sign of a disturbance Either way I am tasty or beautiful.

Most oft used full when you've broken a vase. Or you're caught up in a multiple murder case. Otherwise, length dependent, you use but a fraction. A grandparent's can be used in a password fashion.

I’m where boats sleep and gently rock, With ropes and bumpers, I’m not a sock. Walk on my boards, hear seagulls squawk, Where are you standing?

Every heartbeat Sends me away. Every heartbeat Brings me back.