what to do under such worst case scenario?
like we do with the vacuum sucking plastic on wall? ply a bit out
from the edge then the suction will disappear...
so, i guess if you ever encounter this situation, don't panic,
can't force up your whole body by brute force. MUST PLY A BIT from
the body edge, like LIFTING UP your stomach to give a small opening
then the suction will disappear very fast...