pre-baked ham you buy in the foil and heat up - how do know if you have a "bad' ham?

I never had this issue before.

Today I bought America's Choice ham in the foil, and it looked weird....like, slices that were pre-sliced were falling apart....looking "chewed" on the inside in certain areas.....parts of ham on outside were colored differently, and there was some fat on it.

is this normal?

Re: pre-baked ham you buy in the foil and heat up - how do know if you have a "bad' ham?

How did it smell? I'd go more by that. Also, was it slimy? That's usually a sign that the package had a tear or something, leading to air and the meat going bad.