in rare cases maybe, but would you rather be standing there picking chips of wood outta their mouth while they down the rat or let them eat in peace?
ive tried all the other substrates and none are less of a worry than ecoearth.
oh and i let mine get pretty dry. and the humidity is still at 70%
and wait why would the rat/mouse be wet when feeding? mine are always dry.
with the exception of drool from my snakes.
for the most part theres always very little EE in my lill ones mouth from the strike not dragging in the prey,
but to each their own