Luckily it was unharmed, but I couldn't regain control before the inevitable crash - I would be interested to hear more experienced pilots opinion.
When I received my Spark in 2017, I did a test flight inside the house and had an Oh
Before I knew it, the prop wash sucked it up to the ceiling and it was skipping around like an air hockey puck.
It was both terrifying and funny at the same time. ??
Thank goodness I had the prop guards on at the time and no harm was done to anything.

A similar situation probably happened to you, only it was the was in a hallway.