You ' re right , it ' s never explicitly stated . Although , it seems heavily implied that it was a one night stand most fans I ' ve seen assume Sour Cream was conceived in the back of Greg ' s van . Amethyst was probably aware of Marty because of childcare and support arrangements . <| sep |> Uhh that ' s not how phones work . Many newer phones have both CDMAGSM capabilities and are compatible with all 4 networks . Also Verizon is a CDMA carrier . Plus , LTE is a technology based on GSM . <| sep |> To be fair and honest those shitty people were fairly elected by the people then fairly disposed of . <| sep |> I second this . Would be great on maps like Oregon in dorms by the double wide window , right by the beds . Blow a hole open between the dorms and set it up .