Anyone else had theirs repaired by the U.S. Passport Agency on the spot? Or tried using an iron to repair the laminate?

Mine is dog-eared and the immigration officer leaving Spain this week detained me for a minute or two and scolded me saying that it was "muy malo" and that I need to get it fixed. Replacing my passport is not an option since I'd have to get new visas for Brazil, Chile, etc.

Ideas appreciated!