Hello again

I was hoping to get a bit of insight into my latest conundrum. I've had so much fabulous help and pointers before I'm sure someone out there will be able to help again

It's a bit complicated (isn't it always?!) so I'll try and be as clear and concise as possible.
Thomas Clowes born April 1859 Onecote, Staffs (Leek reg.)
Parents - Elisha and Emma. (I have all their info)
I have baptism and census info for Thomas up to 1871 when he was 11 living with parents in Cheddleton,Staffs.
Last year I was convinced I had found him in the 1881 census in London with wife Charlotte and had found his marriage. Also a link to his job at the railway. I have lots of info about the wife & her child before 1881 but not after.
Previous thread March last year (not all that much info)
http://www.rootschat.com/forum/index.php?topic=717057.msg5607874#msg5607874 but now I'm not so sure!
I held off sending for the marriage cert (I know I'm going to have to get it eventually

or wait until Rutland PR copies come online.) But as I've come back to this problem I've come across some conflicting info :-
1882 Military Service Attestation
http://search.findmypast.co.uk/record?id=gbm%2fwo97%2f2518%2f40189This is definitely him as Elisha & Emma are stated next of kin. The problem is that he says he hasn't resided out of his father's house for 3 years and states that he isn't married.
This doc does say he was discharged 1888 after a long list of missing parade, escaping from barracks, having a very bad attitude and for being "incorrigible and worthless"
Now I can't find anything solid about him after this. Nor for his wife and adopted child. I've found possibilities of him being in asylums and criminal cases but they don't really hold up.
What I'd like to know : your thoughts on the situation,
another option for Thomas on 1881 census,
where he & his possible family are after 1881
I know the marriage cert will confirm if it's him or not but it wont further where he was after 1881 or where his possible family were. The military document has put me off getting it just yet so I'd like just to be sure I've not missed anything before I send for it.
I hope I've made some sort of sense and I will clarify anything that I can.
Thanks so much, fingers crossed