Which of the following is a sign that play is not okay?

• A. Stiffness
• B. A wagging tail with a relaxed body
• C. Occasional barking during greetings
• D. Short naps during play

Answer: (A)

Stiffness during play is a clear sign that something isn’t OK, because it shows the dog isn’t relaxed or freely moving. In healthy, engaged play, a dog’s body is loose and flexible—you’ll see a soft, relaxed posture, a wagging tail that matches the motion of the body, and a playful bounce or bow. When the muscles are tense and the body is rigid, it signals discomfort, fear, or pain, which can quickly shift the interaction from fun to stressful or unsafe. The other cues described don’t point to a problem with play in the same direct way: a wagging tail with a relaxed body is a positive sign of enjoyment, occasional barking during greetings is a common burst of excitement, and short naps during play can simply be rest breaks.