After a minute of her increasing the shoving, he was breathing hard and having to push it in erratic patterns just to keep the momentum going so it could move it circles. But he can't keep this up, and he'd rather admit it and just let her be disappointed in him than in some way drop the cube and hurt someone.

"...I can't keep up," he admits, carefully lowering the block to the ground. "I - I'm so sorry, ma'am."