I agree. I always fear these types of cans. I think this gadget would really solve it.
"Ring pull can opener. I always open these cans with trepidation, afraid to snap off the ring and then start the futile search for the pliers. Boa Housewares has created an opener for pull cans (not soft drink cans) that slips under the ring and then pulls back the entire top. Simple, brilliant. Boa's claim to fame is actually Clam Knife Blocks. See more in the extended post."
Via: MoCo Loco: Canpull