I'm pretty excited to have learned the term "eggcorn." A pet peeve of mine is when people misspeak the phrase "I couldn't care less" as "I could care less." I get annoyed by the this omission because the point of the phrase is lost--I care so little about that, that it's physically for me to care any less. Anal-retentiveness aside, I'm not sure what can be learned from the phenomenon of eggcorns. Is it simply that people mishear a lot of language and don't pay much attention to what colloquialisms mean?