much prefer a 3bet pre also, hate playing raggy suited cards for value even IP and pretty much everyone has joke weak preflop ranges
Live people are wierd, even live guys who game's i rate pretty highly do this thing where they bet weak value hands weak and strong value hands strong, so my initial reaction is he has a decent-ish value hand and doesn't want it to go chk/chk (or have to call a big bet) so finds a silly half pot bet as a compromise.
Problem is he could be a poor hand reader and be worried about sets and QJ, so thinking A7/AT is a good hand to do this with, and the other point is that usualy when half smart people do this they are planning to bet/fold.
So for these reasons i'd have counted out £115 to raise with then just thrown the top 7 £5 chips in and expect to have them returned to me within the next 25seconds
Chuck in the 35, then say raise, dealer rules it has to go as a call, do a giant pretend fling of the hands in the air, say ffs meant to raise. you win the pot and don't get called a nit - ez.
Go to fold, and then shove £1K of chips over the line by mistake.
Happens to me all the time....