Learned: Stretching

Not stretching before an impromptu 5-minute dance session: good to go.

Not stretching before a long but light dance sesh: probably not a good idea, probably still be fine.

Not stretching before a long, intense dance sesh: very bad idea.

I think I pulled something. ..

I think need start stretching everyday at the start because I can never seem to predict when the dance mood will hit me. Better to be prepared for it anytime.