Frisky- I think Fuzzy means having it offered in conjunction with speech therapy to kids- like having to go to a sign specialist for sign lessons, just as deaf kids tend to go to a speech therapist for speech lessons. I completely agree- why not offer both and let the child/family decide what is working best, rather than present just speech?
It's up to Deaf to create those specific jargon signs. I have seen a local sign for caffeine. It's the NIGHT-OWL/UP ALL NIGHT sign done as a locative around the face. The S to C's around your eyes, done in a circle around your face because caffeine keeps you up and alert. Could be regional.