Well, well....where to start....OK, here goes:
If he's got fiber to his place from a carrier, then it's running (at least) fractional DS3 {DS3 is 45Mbps, in 30 channels of T1 usually}.
If you were to cut that line, you find more than one pair of fiber .... probably like a couple dozen, all going to hundereds of other places ... who would be real mad that they can't get their phone/data through (read: lawsuit city).
If you could correctly identify the right pair he's on, you'd still need a DS3 mux (~US$ 25,000-50,000), the power to run the mux, and the splice case to cover up the breech in the (very expensive, and probably not owned by your friend) armoured, gell-filled, direct burial cable.
Once you get you T1 broken out of the DS3 mux (which the provider would have to assign to you, BTW), you'd still need a router (you can plug it into the power that feeds the DS3 mux, so no problem) to get it to Ethernet, and you'd still need an account with the ISP to log in and receive network services: you can't use his, because then HE wouldn't be able to get on. You'd need to backhaul from your router to his.
When you put in the power for the mux and the router, put in a double-duplex, cause you're gonna need another outlet to run the wireless transceiver, which may make the distance .....after you add a couple hundred dollars in Heliax and antennas (which someone will steal unless you fence it in and guard it). Maybe you can use the fourth outlet to run the video survellience system .....
That's enough, I guess, you get the idea (in addition to all the other encouraging comments above).
I don't even want to talk about the poorly educated in-DUH-vidual that, for no good stated reason, decides he can almost double the recommended specification length of the unshielded twisted pair (a "bad thing"), almost certainly in a tightly-wound spool (a "bad thing"), with probably the cheapest RJ plugs he could buy (a "bad thing") ... and decide that, because he's getting SOME data through, it must be a perfect working setup. Whatever trips your trigger bucko....there's a better way. BTW: The Shift Keys are the big wide keys on either side of the first row of letters.
(I guess I'm just getting cranky in my old age)
Good Luck to you both .....
Scott