Use "bang against" in a sentence

1. ‘Alex Clamped her hand onto Becky's shoulder and began to slow her pace down.’ ‘Panic washing over her at the realization, she sat back onto her knees and Clamped her hands over her ears.’ ‘In the infinitesimally small light, I saw Jason bang against the edge, and I Clamped a hand over his mouth before he could cry out.’