Boli in the center chamber of the three chamber arena were tallied after social preference tests ended, and males in the metformin through wean (Met-wean) group dropped significantly more than control males (*p < 0.05). Boxes show 25th to 75th percentiles, center line is median, plus signs are means, whiskers are minimum to maximum fecal boli, # boli per individual are small symbols, sample sizes are shown as numbers under each box.