Skidmarks in Husbands underwear

the title is just as it says for about 2 of the 3 years of being married it seems like once a week during laundry i stumble across a pair of his underwear that has poop stains. at first i was nice and didn't really mention it but went out was a supportive wife and bought adult wet wipes to help him better in the bathroom. This of course did not help! I finally approached him about it but was a little hateful about it and know that had to of embarassed him.. for a while it worked i didn't find the skidmarks anymore... Today when I was gathering up the dirty laundry it happened again.. luckily he is at work and i had a chance to scream about it in disgust and pace for a while to figure out how I can get this situation under control.. what can i do, what can i say to help him or atleast make him be a little more aware of this problem and keeping it under control.

Put the internet to work for you. via Personal Recipe 2629979