Randomly
p/s: demo is recommended XD Let's picture that you're "migrating" the soup from a pot to a bowl. In your right hand is a big soup spoon while the left is a wet cloth. The pot and the bowl are just in front of you. No doubt, right hand will be the one "moving out" the soup and the wet cloth in your left hand is to use it together to open the pot as the pot is burning hot! So, after you had opened the pot with your left hand, eventually, you will place the pot cover on the kitchen table. Right? Then, with the big soup spoon in your right hand, you will "migrate" the soup into the bowl. The next step is of course, to cover up the pot by using your left hand. WHAT IF, you forgot to reach for the pot cover? You "cover" the pot with the wet cloth instead, by accidentally dropped it inside, like what you're supposed to place the pot cover by "dropping" it. *faint* I almost... did that =.='' Another one, imagine in front of...