and they'd start showing adverts for divorce lawyers to me soon to be ex wife
Use decent adblock software.
The other one is mobile phone ads "Sent from my ___".
I accept those for their information value. If I get a short mail telling me "sent from a phone" (almost always from business-used iPhones) I know that the person in question has read my mail but I know I don't have to expect long replies. I'll get a better reply when he/she's back in office.
In every non-trivial program there is at least one bug.