Our efforts to catch the mouse in our house have been thwarted repeatedly. We set out the D-Con and when he wouldn't touch it, we tucked little bits of cheese in with the pellets. He picked out the cheese, scattered some of the D-Con on the floor and probably didn't eat any of the poison. We tried again, and this time he may have eaten some of the D-Con, but not enough to kill him. Don set out a good-sized trap and baited it with cheese. The next day the cheese was gone and so was the mouse. Don put out a smaller piece of cheese and the mouse made off with it. Don modified the trap to make it super sensitive (he got his finger pinched in the process), but the mouse won again. This mouse is crafty!!
We found some glue traps in the grocery store, and our cleaning lady said those worked very well. Don put a piece of cheese in the middle of this trap and set it near the refrigerator (where we're pretty sure he's hiding). The next morning the trap had been moved over next to the futon, the cheese was gone and all that remained were some little mouse footprints in the glue. Don figures that he was able to use the metal edge of the futon to leverage himself off. The next day, I suggested that we put some soft bits of Velveeta in the trap, maybe he wouldn't be able to pull them off. Sure enough, he didn't, but the trap had no footprints; he simply ignored it. Don said "well, maybe he doesn't like Velveeta; he wants the good cheese. So we tried that again. Nope. This mouse has it all figured out.
The mouse war continues.