Separate cutlery, wrappers and other objects before moving food towards the disposer. Treat the sink opening as an appliance inlet rather than a general place to collect unsorted washing-up.
What the observation tells you
Utensils can hide beneath leftovers, particularly when several plates are scraped together. A suitable basket or cover used in its approved resting position can help prevent accidental entry while the appliance is idle. Do not substitute a loose object that could fall through when the unit starts.
A useful next step
Before each session, check the visible sink area and use the documented operating arrangement. Never put fingers into the opening to feel for anything missing.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.