Would love to hear others' stories of The Wrong Roses

I purchased what was clearly labeled as a climber (Don Juan) and also planted
at the back door. The plant appears for all intents and puposes to be
a"regular" bush since the 4 canes each have a flowering bud at the tip. I
thought climbers bloomed on laterals(I am not a rose officianado). Am I barking
up the wrong "cane"?

Vince