Purdue offers a free certificate for those wishing to pursue a career in rat tickling. Link: https://ag.purdue.edu/ansc/gaskill/resources/
OMG! Now, I understand why American students have a load of student loans that cannot afford to pay back.
I don't understand what you mean. This is a free certificate in a technique that is actually in scientific use and isn't even meant to be an academic credential.
That was fun. Seriously. If you have some time to kill and just want to learn something different, then I highly recommend it. The certificate actually looks pretty good. The real one doesn't have my name off-center like that. That's just how it came out after I edited my screen name in using a free online tool that messed up the output.