Capturing Data Type Mismatch

Hi,
Create Table tb_mismatch
(x int)
Create Procedure proc_mismatch
as
begin
insert into tb_mismatch values('s')
if @@error<>0
begin
print ' entered error loop'
end
print 'successfully exited'
end
exec proc_mismatch --executing the proc
Now, when i try to capture the above error its not getting trapped..its directly going to the final end statement.
I have even tried calling subprocedures so that it comes out of the inner procedure and by some means i can move forward in the outer proc,but even that failed.
The proc. is able to capture all the other errors like primary key violation,binary data truncated etc but not the datatype mismatch error (mainly int with varchar...)
any ideas are highly appreciated.
Thanks & regards,
Pavan.