True enough Pete

When Michael returns from Cuba, at the motel he asks Al to get him a towel and then thanks Al.

However, although neither the novel or GFI anticipated a GFII, Michael's almost constant reference to Tom as Tom Hagen reflects what I've always contended is Michael's blaming Tom for the Corleone's misfortunes. But it begins even sooner when Michael introduces Tom to Kay as Tom Hagen and then says (needlessly) that Tom is not a Sicilian. At that point there is no blame, but it illustrates Michael's glandular discomfort with Tom.