Conservation of Momentum Questions

• Can momentum be hidden to human eyes like how kinetic energy can be hidden as heat?
• How do tractor beams work?
• How does quantum theory allow a rock to turn suddenly into a duck?
• If I'm on an elevator that breaks loose and plummets down the shaft, can I avoid harm by jumping at the last second?
• Why are truck drivers rude?
• Why doesn't light carry momentum?