He was always ready to do anything whatever.

Unasked, he spied on the workmen, reporting their carelessness and mistakes.

This last service did not especially please his superior officer, but he appreciated it as a sign of interest in the establishment.
The old man bragged triumphantly of the new acquisition, urging his son-in-law also to rejoice.
"A very useful fellow, isn't he?
.

.

.