Here is a snibblet of a conversation my husband and I had the other day.
LW: You know who would be great to have in the zombie proof fortress? Pyro!
Sunshine: Ooh yeah! He could just torch them!
LW: Jean Gray and Cyclops would be very useful too.
Sunshine: Don't forget Wolverine!
LW: I don't think that would be a good idea! I mean, obviously we would want him in the fortress, but not as a fighter. What if he got bitten?
Sunshine: Don't you think his healing power would stop him from turning zombie?
LW: I don't know, but would you really want to risk it? Then we would need Magneto.
Sunshine: And nobody wants Magneto.