Cause maximal disruption to a Straw Poll
Mathematica, 19 44 bytes
...(loud complaining)
(x=Median@#[[;;Mod[Length@#,2]-3]];#≤x&amp;/@#)&amp;

Test:
{Test, data, goes, here};
(x=Median@#[[;;Mod[Length@#,2]-3]];#≤x&amp;/@#)&amp;
%%+Boole/@%