I am about to start trying to trap some cats that I have been feeding on the way to work in the mornings. The person who is currently renting the house gave me permission to try to trap them because the numbers keep steadily increasing and it is getting out of control. I have spoken with the animal shelter manager and she knows I am going to start bringing some cats in. I bought a havahart trap and I have both doors set to open but am worried about what might happen if one cat goes in one end and sets the trap while another cat is coming in at the other end. Could it snap down and hurt the cat? Should I only set one door open?