When talking to the children about what they want to be when they grow up, be very careful.
If one of your darlings says they play the piano, and they want to be a “Piano-ER” when go grow up, let it go.
Do NOT tell the whole class the real name of what it is she wants to be. THEY will hear PEEanist.
Unless, of course, you want to start a mass riot of children shouting PEE PEE PEE for about twelve minutes, that will result in mass hysterical laughter.
Then, by all means, go right ahead.