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Marco Rubio made a funny.

He is often accused of being a robot, but an exchange about yoga allowed him to display some spontaneous wit. Earlier in the night, Trump fielded complaints about flip-flopping by saying that flexibility is a virtue in a leader. 

Later, when Trump and Cruz were talking past each other:

Cruz to Trump: “Breathe, breathe, breathe...” 

Rubio: “When they’re done with the yoga, can I answer the question?

Cruz: “I hope no one does yoga.”

Rubio: “Well, he’s very flexible...”

Cruz’s anti-yoga comment was probably a bone thrown to right-wing evangelicals, who see yoga as a heathen practice. But Rubio’s joke about Trump being “flexible” made the night. As a piece of improv, it wasn’t bad.