UMM, i have that shit, that yo'll here like an instant message alert even when ur not high, and u arent nearur PC...
recently, since its winter up here, ill just sit outside and shit when im high, and in the cool wonter AIR u can hear eveerything, i once heard so many sirens.....iguess it was echos and shit....i ran inside wanting to call the cops....
idunno ui was fucked.