If you have never heard a real tongue/interpretation, how you know if you did? I mean what are the hall mark of genuine tongues? I have heard a bunch of Shanananashnananana in some meetings and dismiss that nothing more than stammering 'in the spirit'
Perhpas better suited for closet praying. I have heard nothing which has linguistic cadence to it but other than that how does one know? Come to think of it I have not anyone speak in the African tribal languages where they use clicks and pops interspersed with vocalizations.