No but I did reach out from the RHS of a Wessex and put my finger over the pitot tube as I gave control to my colleague in a UP on SCT IF. He pushed the nose forward assuming we were at zero IAS and then a bit more - we both got a surprise as I removed my finger from the pitot and suddenly had 115 Kts and rising quickly! Learned about messing around on UPs from that one
lucky the heater wasn’t on!