Here's what I use to generate answers to secret questions:
< /dev/urandom tr -dc a-z0-9 | head -c 16
This leads to things like:> "What is your first pet's name?"
"q1ry9nftmxb1gmag"
I haven't had it happen yet, but I wonder what a customer service rep's response will be when I spell out "yrlmduihhyju5il0" when asked what my favorite color is.