Wiktionary
under one's feet
adv. Acting annoyingly; being a nuisance; being in the way.
Usage examples of "under one's feet".
Then, taking up the bag that was still half-wrapped about the wonder her father had brought home, she scrambled up to the part of the house which she had made her own, her father not choosing to follow her over the loose brick which often started sliding under one's feet.
It was not until one was in a ship under sail, with the deck unstable under one's feet, and the familiar rattle of the blocks and piping of the rigging in one's ear, that the thousand and one details of life at sea became vivid and recognisable again.
It's wonderful to see the rockets completing their orbits down under one's feet.