When scrolling through a feed on a smartphone my thumb keeps landing right on the Repost button, accidentally opening the repost pop-up menu.
Typically this isn't too big of a problem but today I managed take it a step further and subsequently hit the Repost option within that menu on an A+ photo and not noticing it for several hours.
Please consider disabling the Like and Repost buttons while the page is in motion. This will help people like me avoid a lot of awkwardness.