Usually many rows are allocated when doing MITM. I assume if such a error occurs, it does not only occur for one row. So the user will probably nevery end in confirming the error dialogs. I'd prefer either a visible message in the messages pane using **USER_MSG** plus some **DEBUG_MSG** including information which is useful for us like file, function, line or **WARN_MSG** which writes it to *stderr* instead and in additon to the debug log.

So either `WARN_MSG("failed to allocate memory for a new row");`  or a combination of `USER_MSG("Failed create new connection row"); in combination with `DEBUG_MSG("gktui_connections_add: failed to allocate memory for a new row");`.

I'd prefer the USER_MSG & DEBUG_MSG approach as it does not break a curses drawn screen and might be missed if the GTK mode is **not** started from a terminal.