Incorrect results using WITH RECOMPILE option
This ought not happen, but there have been several bugs that mean it might, depending on your version of SQL Server, and which patches you have applied.

The relevant Microsoft KB articles are listed below:

FIX: Incorrect result when you execute a query that uses WITH RECOMPILE option in SQL Server 2012 or SQL Server 2014

FIX: A query that uses parameters and the RECOMPILE option returns incorrect results when you run the query in multiple connections concurrently in SQL Server 2008

FIX: Different results may be returned when you concurrently run the same query with the RECOMPILE option in SQL Server 2008