The Irish culture uses the Claddagh symbol, the Celtic Knot and the Trinity Knot to express their love for one another. These symbols bring the Celtic people together as one. They are popularly used throughout jewelry, decorations and expressive art.
Because HCl is a polar molecule but doesn't have the H-F, H-O, or H-N bonds needed for hydrogen bonding, its intermolecular forces are dipole-dipole forces. This does not actually experience Hydrogen bonds as it is not Hydrogen bonded with either N,O, or F. London dispersion forces occur from the attraction between temporarily polarized nonpolar molecules. Here's what happens: The electrons in a molecule are pretty much randomly and evenly distributed.
HF is an exception because of the stronger force of attraction between HF molecules resulting from hydrogen bonds acting bewteen the HF molecules. Weaker dipole-dipole interactions act between the molecules of HCl, HBr and HI. So HF has a higher boiling point than the other molecules in this series. There is a full discussion of the effect of intermolecular forces on the group 16 hydrides in the Trends in Group 16 Hydrides tutorial.