Certainly his behavior is suspicious. I never heard of soliciting people for "guarantor" service, in fact the only guarantors I've heard of are for bail, loans, and people who otherwise could be a financial burden. When someone from Europe came to visit me, CBP called me up and said I had to be his guarantor. I said how do I do that, they said make a notarized statement that you will be responsible for any charges he incurs. So fine, I did, he carried this paper around faithfully and nothing more ever came of it.
Certainly his behavior is suspicious. I never heard of soliciting people for "guarantor" service, in fact the only guarantors I've heard of are for bail, loans, and people who otherwise could be a financial burden. When someone from Europe came to visit me, CBP called me up and said I had to be his guarantor. I said how do I do that, they said make a notarized statement that you will be responsible for any charges he incurs. So fine, I did, he carried this paper around faithfully and nothing more ever came of it.