Some have a “minhag” to smoke on Purim which clearly demonstrates “ad dlo yada’ – they have no idea what they are doing.
But. if smoking anyway, in states that marijuana is legal (dina d’malchusa), it would quickly get them to the the mind alteriing state of ad dlo yada.
Same applies to teenage girls (over bas mitzva) that want to be yotzeh the chiyuv of ad dlo yada.