Last time was about 8 or 9 years ago. Started from an intersection with a group that included my ex wife. I was in the back and clipped in as the others wobbled all over the road. Nowhere to go but down.
Yes I have fallen over with clips and straps, too. Maybe more times than with clipless.
I have also crashed twice when pedals have snapped off. The second time I almost fell again as I stood up with the pedal still clipped to my shoe.