What shortcut am I pressing by mistake!? Sends me back to the start of the sequence! ANNOYING!

[TBKnbaNYC]

I keep hitting some keystroke by mistake that is sending my playhead back to the start of my sequence.  It's driving me nuts!  Anyone know what I'm fat fingers keep hitting?

I can't figure it out.  I know this is an absurd problem.  Sorry and thank you in advance! haha

[TBKnbaNYC]

I meant to post this in the Premier Pro section.  Sorry!  I reposted there.  I don't see an option to delete this post.