Unplugging PSU power cable tripped a breaker
So this weekend I was tiding up and redoing cables on the PC I’ve build during the Christmas season. After finishing up I turned the PC on and everything seemed to be working correctly. After that I turned the PC off again, disconnect mouse/keyboard/HDMI cable, turned off the PSU and then unplug PSU power cable which caused living room breaker to trip. The PSU - Seasonic Prime Titanium 1000W - was plugged into a surge protector.
Now this is pretty unusual, I think I haven’t seem this particular breaker tripped since I moved in. However the PC seems to be working just fine. Moreover, although I’ve tried to trip the breaker again using the same procedure, I haven’t been successful.
So should I just forget about the whole thing or is this a reason for concern?